 9.75GP: Parachutists whose chutes have failed to open have been known to su...
 9.76GP: A steel wire 2.0 mm in diameter stretches by 0.030% when a mass is ...
 9.77GP: ?In Example in Chapter 7, we calculated the impulse and average for...
 9.78GP: The roof over a 7.0m × 10.0m room in a school has a total mass of...
 9.79GP: ?A object is being lifted by pulling on the ends of a 1.00mmdiame...
 9.6Q: ?Explain why touching your toes while you are seated on the floor w...
 9.2P: ?(I) Calculate the torque about the front support post (B) of a div...
 9.36P: The Leaning Tower of Pisa is 55 m tall and about 7.0 m in diameter....
 9.39P: A marble column of crosssectional area 1.2 m2 supports a mass of 2...
 9.40P: By how much is the column in shortened if it is 9.6 m high? A marbl...
 9.41P: A sign (mass 2100 kg) hangs from the end of a vertical steel girder...
 9.47P: ?(III) A pole projects horizontally from the front wall of a shop. ...
 9.50P: If a compressive force of 3.6 × 104 N is exerted on the end of a 22...
 9.51P: (a) What is the minimum crosssectional area required of a vertical...
 9.52P: ?(II) Assume the supports of the uniform cantilever shown in Fig. (...
 9.53P: An iron bolt is used to connect two iron plates together. The bolt ...
 9.54P: A steel cable is to support an elevator whose total (loaded) mass i...
 9.61GP: ?When a wood shelf of mass is fastened inside a slot in a vertical ...
 9.62GP: ?A 50 story building is being planned. It is to be high with a bas...
 9.64GP: ?In Fig. 976, consider the righthand (northernmost) section of th...
 9.66GP: ?The forces acting on a aircraft flying at constant velocity are sh...
 9.67GP: ?A uniform flexible steel cable of weight is suspended between two ...
 9.68GP: ?A mlong uniform beam weighing rests on walls and , as shown in F...
 9.70GP: ?A painter is on a uniform scaffold supported from above by ropes (...
 9.72GP: ?A man doing pushups pauses in the position shown in Fig. His mass...
 9.73GP: ?A sphere rests between two smooth planes as shown in Fig. Determin...
 9.74GP: ?A trailer is attached to a stationary truck at point B, Fig. 986....
 9.1Q: Describe several situations in which an object is not in equilibriu...
 9.2Q: A bungee jumper momentarily comes to rest at the bottom of the dive...
 9.1P: ?(I) Three forces are applied to a tree sapling, as shown in Fig. 9...
 9.3Q: You can find the center of gravity of a meter stick by resting it h...
 9.4Q: ?Your doctor's scale has arms on which weights slide to counter you...
 9.3CQ: 3CQ A 0.2 kg plastic cart and a 20 kg lead cart can roll without fr...
 9.3P: ?(I) Calculate the mass needed in order to suspend the leg shown in...
 9.5Q: ?A ground retaining wall is shown in Fig. 936a. The ground, partic...
 9.7Q: A ladder, leaning against a wall, makes a 60° angle with the ground...
 9.4P: ?(I) How far out on the diving board (Fig. 942) would a diver have...
 9.8Q: ?A uniform meter stick supported at the mark is in equilibrium when...
 9.5P: ?Two cords support a chandelier in the manner shown in Fig. 9–4 exc...
 9.9Q: Can the sum of the torques on an object be zero while the net force...
 9.6CQ: Problme 6CQ Two students stand at rest, facing each other on fricti...
 9.10Q: ?Figure 938 shows a cone. Explain how to lay it on a flat table so...
 9.6P: ?(II) Calculate the forces \(F_{A} \text { and } F_{B}\) that the s...
 9.11Q: ?Which of the configurations of brick, or of Fig. 939, is the more...
 9.7CQ: Two particles collide, one of which was initially moving and the ot...
 9.7P: ?(II) A uniform steel beam has a mass of . On it is resting half of...
 9.12Q: ?Why do you tend to lean backward when carrying a heavy load in you...
 9.13Q: ?Place yourself facing the edge of an open door. Position your feet...
 9.8P: A 140kg horizontal beam is supported at each end. A 320kg piano r...
 9.14Q: Why is it not possible to sit upright in a chair and rise to your f...
 9.15Q: Why is it more difficult to do situps when your knees are bent tha...
 9.9P: ?(II) A 75kg adult sits at one end of a 9.0mlong board. His 25k...
 9.16Q: ?Name the type of equilibrium for each position of the ball in Fig....
 9.10P: (II) Calculate FA and FB for the uniform cantilever shown in Fig. 9...
 9.17Q: Is the Young's modulus for a bungee cord smaller or larger than tha...
 9.11CQ: Two ice skaters, Megan and Jason, push off from each other on frict...
 9.18Q: Examine how a pair of scissors or shears cuts through a piece of ca...
 9.11P: ?(II) Find the tension in the two cords shown in Fig. Neglect the m...
 9.19Q: Materials such as ordinary concrete and stone are very weak under t...
 9.12P: ?(II) Find the tension in the two wires supporting the traffic ligh...
 9.13P: ?How close to the edge of the 20.0kg table shown in Fig. 9–47 can ...
 9.14P: ?A 0.60kg sheet hangs from a massless clothesline as shown in Fig....
 9.15P: ?Calculate \(F_{A} \text { and } F_{B}\) for the beam shown in Fig....
 9.37P: ?(III) Four bricks are to be stacked at the edge of a table, each b...
 9.16P: ?Three children are trying to balance on a seesaw, which consists o...
 9.38P: ?(I) A nylon string on a tennis racket is under a tension of 275 N....
 9.42P: (II) One liter of alcohol (1000 cm3) in a flexible container is car...
 9.17P: ?(II) Figure shows a pair of forceps used to hold a thin plastic ro...
 9.43P: (II) A 15cmlong tendon was found to stretch 3.7 mm by a force of ...
 9.44P: (II) How much pressure is needed to compress the volume of an iron ...
 9.18P: ?(II) Calculate the tension \(F_{T}\) in the wire that supports the...
 9.45P: (II) At depths of 2000 m in the sea, the pressure is about 200 time...
 9.46P: (III) A scallop forces open its shell with an elastic material call...
 9.19P: ?(II) A tall person lies on a light (massless) board which is supp...
 9.48P: (I) The femur bone in the human leg has a minimum effective cross s...
 9.49P: (II) (a) What is the maximum tension possible in a 1.00mmdiameter...
 9.20P: ?(II) A shop sign weighing is supported by a uniform beam as shown ...
 9.55P: (II) How high must a pointed arch be if it is to span a space 8.0 m...
 9.56P: ?(II) The subterranean tension ring that exerts the balancing horiz...
 9.21P: ?(II) A traffic light hangs from a pole as shown in Fig. . The unif...
 9.63GP: ?The center of gravity of a loaded truck depends on how the truck i...
 9.65GP: ?When a mass of is hung from the middle of a fixed straight aluminu...
 9.22P: ?(II) The man's hands in Fig. are apart. His is located of the dis...
 9.69GP: ?A cube of side rests on a rough floor. It is subjected to a steady...
 9.71GP: ?A woman holds a mlong uniform pole as shown in Fig. ( ) Determin...
 9.23P: ?(II) A uniform meter stick with a mass of is supported horizontall...
 9.80GP: There is a maximum height of a uniform vertical column made of any ...
 9.1CQ: What can you say about the velocity of a moving body that is in dyn...
 9.1PE: (a) When opening a door, you push on it perpendicularly with a forc...
 9.24P: ?(II) The two trees in Fig. are apart. A backpacker is trying to li...
 9.25P: ?(III) A door high and wide has a mass of . A hinge from the top an...
 9.3PE: Two children push on opposite sides of a door during play. Both pus...
 9.26P: ?(III) A uniform ladder of mass and length leans at an angle \(\the...
 9.4PE: Use the second condition for equilibrium (net ? = 0) to calculate F...
 9.27P: ?(III) Consider a ladder with a painter climbing up it (Fig. 961)....
 9.28P: ?(III) A person wants to push a lamp (mass ) across the floor, for ...
 9.5PE: Repeat the seesaw problem in Example 9.1 with the center of mass of...
 9.29P: ?(III) Two wires run from the top of a pole tall that supports a vo...
 9.30P: ?(I) Suppose the point of insertion of the biceps muscle into the l...
 9.6PE: Suppose a horse leans against a wall as in Figure 9.31. Calculate t...
 9.31P: Approximately what magnitude force, FM, must the extensor muscle in...
 9.32P: ?(II) (a) Calculate the force, \(F_{M}\), required of the "deltoid"...
 9.7PE: Two children of mass 20 kg and 30 kg sit balanced on a seesaw with ...
 9.33P: ?(II) Suppose the hand in holds a mass. What force, \(F_{M}\), is r...
 9.34P: ?(II) The Achilles tendon is attached to the rear of the foot as sh...
 9.8PE: (a) Calculate the magnitude and direction of the force on each foot...
 9.35P: ?(II) Redo Example 99, assuming now that the person is less bent o...
 9.10PE: A 17.0mhigh and 11.0mlong wall under construction and its braci...
 9.11PE: (a) What force must be exerted by the wind to support a 2.50kg chi...
 9.12PE: Suppose the weight of the drawbridge in Figure 9.34 is supported en...
 9.13PE: Suppose a 900kg car is on the bridge in Figure 9.34 with its cente...
 9.14PE: A sandwich board advertising sign is constructed as shown in Figure...
 9.15PE: (a) What minimum coefficient of friction is needed between the legs...
 9.16PE: A gymnast is attempting to perform splits. From the information giv...
 9.17PE: To get up on the roof, a person (mass 70.0 kg) places a 6.00m alum...
 9.18PE: In Figure 9.21, the cg of the pole held by the pole vaulter is 2.00...
 9.19CQ: one of the reasons why pregnant women often suffer from back strain...
 9.19PE: What is the mechanical advantage of a nail puller—similar to the on...
 9.57GP: ?The mobile in Fig. is in equilibrium. Object has mass of Determine...
 9.20PE: Suppose you needed to raise a 250kg mower a distance of 6.0 cm abo...
 9.58GP: A tightly stretched “high wire” is 46 m long. It sags 2.2 m when a ...
 9.21PE: a) What is the mechanical advantage of a wheelbarrow, such as the o...
 9.59GP: ?What minimum horizontal force is needed to pull a wheel of radius ...
 9.22PE: A typical car has an axle with 1.10 cm radius driving a tire with a...
 9.60GP: A 25kg round table is supported by three legs equal distances apar...
 9.23PE: What force does the nail puller in Exercise 9.19 exert on the suppo...
 9.24PE: If you used an ideal pulley of the type shown in Figure 9.26(a) to ...
 9.25PE: Repeat Exercise 9.24 for the pulley shown in Figure 9.26(c), assumi...
 9.26PE: that the force in the elbow joint in Example 9.4 is 407 N, as state...
 9.27PE: Two muscles in the back of the leg pull on the Achilles tendon as s...
 9.28PE: The upper leg muscle (quadriceps) exerts a force of 1250 N, which i...
 9.29PE: A device for exercising the upper leg muscle is shown in Figure 9.3...
 9.30PE: A person working at a drafting board may hold her head as shown in ...
 9.31PE: We analyzed the biceps muscle example with the angle between forear...
 9.32PE: Even when the head is held erect, as in Figure 9.41, its center of ...
 9.33PE: A 75kg man stands on his toes by exerting an upward force through ...
 9.34PE: A father lifts his child as shown in Figure 9.43. What force should...
 9.35PE: ‘Unlike most of the other muscles in our bodies, the masseter muscl...
 9.36PE: Integrated Concepts Suppose we replace the 4.0kg book in Exercise ...
 9.37PE: (a) What force should the woman in Figure 9.45 exert on the floor w...
 9.38PE: You have just planted a sturdy 2mtall palm tree in your front law...
 9.39PE: Unreasonable Results Suppose two children are using a uniform seesa...
 9.40PE: Construct Your Own a method for measuring the mass of a person’s ar...
Solutions for Chapter 9: Kinematics in Two Dimensions; Vectors
Full solutions for Physics: Principles with Applications  6th Edition
ISBN: 9780130606204
Solutions for Chapter 9: Kinematics in Two Dimensions; Vectors
Get Full SolutionsSummary of Chapter 9: Kinematics in Two Dimensions; Vectors
In particular, we discuss an important type of motion known as projectile motion: objects projected outward near the Earth’s surface, such as struck baseballs and golf balls, kicked footballs, and other projectiles. Before beginning our discussion of motion in two dimensions, we will need a new tool, vectors, and how to add them.
Since 143 problems in chapter 9: Kinematics in Two Dimensions; Vectors have been answered, more than 828426 students have viewed full stepbystep solutions from this chapter. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. Chapter 9: Kinematics in Two Dimensions; Vectors includes 143 full stepbystep solutions. This expansive textbook survival guide covers the following chapters and their solutions.

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parallel

any symbol
average (indicated by a bar over a symbol—e.g., v¯ is average velocity)

°C
Celsius degree

°F
Fahrenheit degree