 4.15Q: According to Newton's third law, each team in a tug of war (Fig. 4...
 4.1P: What force is needed to accelerate a child on a sled (total mass = ...
 4.2P: A net force of 265 N accelerates a bike and rider at 2.30 m/s2. Wha...
 4.7Q: Why might your foot hurt if you kick a heavy desk or a wall?
 4.8Q: When you are running and want to stop quickly, you must decelerate ...
 4.11Q: Would a spring scale carried to the Moon give accurate results if t...
 4.12P: A 12.0kg bucket is lowered vertically by a rope in which there is ...
 4.46P: (II) For the system of Fig. 432 (Example 420), how large a mass w...
 4.15P: A person stands on a bathroom scale in a motionless elevator. When ...
 4.16Q: A person exerts an upward force of 40 N to hold a bag of groceries....
 4.18P: A person jumps from the roof of a house 3.9m high. When he strikes...
 4.20P: Draw the freebody diagram for a basketball player (?) just before ...
 4.22P: A 650N force acts in a northwesterly direction. A second 650N for...
 4.24P: The two forces and shown in Fig. 4–43a and b (looking down) act on ...
 4.25P: One 3.2kg paint bucket is hanging by a massless cord from another ...
 4.29P: A window washer pulls herself upward using the bucketpulley appara...
 4.32P: A pair of fuzzy dice is hanging by a string from your rearview mirr...
 4.33P: Three blocks on a frictionless horizontal surface are in contact wi...
 4.34P: The two masses shown in Fig. 4–52 are each initially 1.80 m above t...
 4.35P: Suppose two boxes on a frictionless table are connected by a heavy ...
 4.36P: If the coefficient of kinetic friction between a 35kg crate and th...
 4.37P: A force of 48.0 N is required to start a 5.0kg box moving across a...
 4.40P: The coefficient of static friction between hard rubber and normal s...
 4.39P: What is the maximum acceleration a car can undergo if the coefficie...
 4.41P: A 65kg ice skater coasts with no effort for 75 m until she stops. ...
 4.42P: A car can decelerate at ?4.80 m/s2 without skidding when coming to ...
 4.84GP: Two rock climbers, Jim and Karen, use safety ropes of similar lengt...
 4.43P: (a) A box sits at rest on a rough 30° inclined plane. Draw the free...
 4.45P: The coefficient of kinetic friction for a 22kg bobsled on a track ...
 4.47P: A box is given a push so that it slides across the floor. How far w...
 4.48P: Two crates, of mass 75 kg and 110 kg, are in contact and at rest on...
 4.49P: A flatbed truck is carrying a heavy crate. The coefficient of stati...
 4.50P: On an icy day, you worry about parking your car in your driveway, w...
 4.51P: A child slides down a slide with a 28° incline, and at the bottom h...
 4.52P: The carton shown in Fig. 4–55 lies on a plane tilted at an angle ? ...
 4.54P: A roller coaster reaches the top of the steepest hill with a speed ...
 4.53P: A carton is given an initial speed of 3.0 m/s up the 22.0° plane sh...
 4.55P: An 18.0kg box is released on a 37.0° incline and accelerates down ...
 4.56P: A small box is held in place against a rough wall by someone pushin...
 4.57P: Piles of snow on slippery roofs can become dangerous projectiles as...
 4.58P: (a) Show that the minimum stopping distance for an automobile trave...
 4.59P: A coffee cup on the dashboard of a car slides forward on the dash ,...
 4.60P: A small block of mass m is given an initial speed v0 up a ramp incl...
 4.61P: The 75kg climber in Fig. 4–56 is supported in the “chimney” by the...
 4.62P: Boxes are moved on a conveyor belt from where they are filled to th...
 4.64P: (a) Suppose the coefficient of kinetic friction between m1, and the...
 4.63P: A block (mass m1) lying on a frictionless inclined plane is connect...
 4.65P: A bicyclist of mass 65 kg (including the bicycle) can coast down a ...
 4.69GP: An 1150kg car pulls a 450kg trailer. The car exerts a horizontal ...
 4.72GP: A 2.0kg purse is dropped from the top of the Leaning Tower of Pisa...
 4.73GP: A cyclist is coasting at a steady speed of 12 m/s but enters a mudd...
 4.74GP: A city planner is working on the redesign of a hilly portion of a c...
 4.75GP: Francesca, who likes physics experiments, dangles her watch from a ...
 4.76GP: A 28.0kg block is connected to an empty 1.35kg bucket by a cord r...
 4.77GP: In the design of a supermarket, there are to be several ramps conne...
 4.79GP: A jet aircraft is accelerating at 3.5 m/s2 at an angle of 45° above...
 4.80GP: In the design process for a childrestraint chair, an engineer cons...
 4.81GP: A 7650kg helicopter accelerates upward at 0.80 m/s2 while lifting ...
 4.82GP: A super highspeed 12car Italian train has a mass of 660 metric to...
 4.86GP: An elevator in a tall building is allowed to reach a maximum speed ...
 4.87GP: Two boxes, m1 = 1.0 kg with a coefficient of kinetic friction of 0....
 4.88GP: A 75.0kg person stands on a scale in an elevator. What does the sc...
 4.89GP: Three mountain climbers who are roped together are ascending an ice...
 4.1Q: Why does a child in a wagon seem to fall backward when you give the...
 4.2Q: A box rests on the (frictionless) bed of a truck. The truck driver ...
 4.3Q: If the acceleration of an object is zero, are no forces acting on i...
 4.4Q: Only one force acts on an object. Can the object have zero accelera...
 4.5Q: When a golf ball is dropped to the pavement, it bounces back up. (a...
 4.6Q: If you walk along a log floating on a lake, why does the log move i...
 4.9Q: A stone hangs by a fine thread from the ceiling, and a section of t...
 4.10Q: The force of gravity on a 2kg rock is twice as great as that on a ...
 4.12Q: (a) You pull a box with a constant force across a frictionless tabl...
 4.13P: (II) An elevator (mass 4850 kg) is to be designed so that the maxim...
 4.13Q: When an object falls freely under the influence of gravity there is...
 4.14P: (II) A 75kg petty thief wants to escape from a thirdstory jail wi...
 4.14Q: Compare the effort (or force) needed to lift a 10kg object when yo...
 4.16P: (II) The cable supporting a 2125kg elevator has a maximum strength...
 4.17P: (II) (a) What is the acceleration of two falling sky divers (total ...
 4.17Q: When you stand still on the ground, how large a force does the grou...
 4.18Q: Whiplash sometimes results from an automobile accident when the vic...
 4.19P: (I) A box weighing 77.0 N rests on a table. A rope tied to the box ...
 4.19Q: A heavy crate rests on the bed of a flatbed truck. When the truck a...
 4.20Q: A block is given a brief push so that it slides up a ramp. After th...
 4.21P: (I) Sketch the freebody diagram of a baseball (a) at the moment it...
 4.21Q: What would your bathroom scale read if you weighed yourself on an i...
 4.23P: (II) Arlene is to walk across a "high wire" strung horizontally bet...
 4.26P: (II) A person pushes a 14.0kg lawn mower at constant speed with a ...
 4.27P: (II) Two snowcats in Antarctica are towing a housing unit north, as...
 4.28P: (II) A train locomotive is pulling two cars of the same mass behind...
 4.30P: (II) At the instant a race began, a 65kg sprinter exerted a force ...
 4.31P: (II) Figure 453 shows a block (mass mA) on a smooth horizontal sur...
 4.38P: (I) Suppose you are standing on a train accelerating at 0.20 g. Wha...
 4.44P: (II) Dragrace tires in contact with an asphalt surface have a very...
 4.66GP: (II) According to a simplified model of a mammalian heart, at each ...
 4.70GP: (II) Police investigators, examining the scene of an accident invol...
 4.71GP: A car starts rolling down a 1 in4 hill (1 in4 means that for ea...
 4.78GP: (a) What minimum force F is needed to lift the piano (mass M) using...
 4.83GP: A 65kg ice skater coasts with no effort for 75 m until she stops. ...
 4.85GP: A fisherman in a boat is using a "10lb test" fishing line. This me...
 4.2CQ: an object is not moving, does that mean that there are no forces ac...
 4.2PE: An automobile has a headon collision. A passenger in the car exper...
 4.3CQ: An object moves in a straight line at a constant speed. Is it true ...
 4.3P: How much tension must a rope withstand if it is used to accelerate ...
 4.4P: What is the weight of a 76kg astronaut (a) on Earth, (b) on the Mo...
 4.5CQ: If you know all of the forces acting on a moving object, can you te...
 4.5P: (ll) A 20.0kg box rests on a table. (a) What is the weight of the ...
 4.6CQ: Three arrows are shot horizontally. They have left the bow and are ...
 4.6P: What average force is required to stop an 1100kg car in 8.0 s if t...
 4.7CQ: A carpenter wishes to tighten the heavy head of his hammer onto its...
 4.7P: What average force is needed to accelerate a 7.00gram pellet from ...
 4.8CQ: Internal injuries in vehicular accidents may be due to what is call...
 4.8P: A fisherman yanks a fish vertically out of the water with an accele...
 4.9CQ: a. Give an example of the motion of an object in which the friction...
 4.9P: (II) A 0.140kg baseball traveling 35.0 m/s strikes the catcher’s m...
 4.10CQ: Suppose you are an astronaut in deep space, far from any source of ...
 4.10P: How much tension must a rope withstand if it is used to accelerate ...
 4.11CQ: Jonathan accelerates away from a stop sign. His eightyearold daug...
 4.11P: A particular race car can cover a quartermile track (402 m) in 6.4...
 4.12CQ: The weight of a box sitting on the floor points directly down. The ...
 4.58GP: a situation. For each problem, draw a motion diagram, a force ident...
 4.59GP: GP a situation. For each problem, draw a motion diagram, a force id...
 4.60GP: a situation. For each problem, draw a motion diagram, a force ident...
 4.61GP: GP a situation. For each problem, draw a motion diagram, a force id...
 4.62GP: GP a situation. For each problem, draw a motion diagram, a force id...
 4.63GP: a situation. For each problem, draw a motion diagram, a force ident...
 4.66G: The fastest pitched baseball was clocked at 46 m/s. If the pitcher ...
 4.65GP: If a car stops suddenly, you feel “thrown forward.” We’d like to un...
 4.67GP: A person has a reasonable chance of surviving an automobile crash i...
 4.68GP: (a) If the horizontal acceleration produced by an earthquake is a, ...
 4.69PP: PP A Simple Solution for a Stuck Car If your car is stuck in the mu...
 4.70PP: A Simple Solution for a Stuck Car If your car is stuck in the mud a...
 4.71PP: A Simple Solution for a Stuck Car If your car is stuck in the mud a...
Solutions for Chapter 4: Physics: Principles with Applications 6th Edition
Full solutions for Physics: Principles with Applications  6th Edition
ISBN: 9780130606204
Solutions for Chapter 4
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Solutions for Chapter 4
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Key Physics Terms and definitions covered in this textbook

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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