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BSU / Physics / PHYS 211 / What is the symbol used to represent velocity?

What is the symbol used to represent velocity?

What is the symbol used to represent velocity?

Description

School: Boise State University
Department: Physics
Course: Physics I with Calculus
Professor: J. brennan
Term: Fall 2016
Tags: vectors, Physics, and Calculus
Cost: 25
Name: Physics with Calculus: Week 2
Description: Notes Covering all formulas, motion, velocity, acceleration, and vectors. Also covers coordinate systems.
Uploaded: 08/27/2016
6 Pages 38 Views 1 Unlocks
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Calculus Derivatives Don't forget about the age old question of How many types of nucleus are there?

  • ds/dt is called the derivative of s with respect to t
  • ds/dt is the slope of the line that is tangent to the s-versus -t graph
  • Consider a function with that depends on times as u=ctn, where c and n are constant

If you want to learn more check out What is referred to as the path of a moving point?

  • The derivative of a constant =
  • The derivative of a sum is the sum’s derivative
  • Velocity is the derivative of s with respect to t

If you want to learn more check out What was henri matisse art style?

Don't forget about the age old question of What does correlation research look for?

FInding Position from Velocity

  • Suppose we know an objects position to be Si at an initial time ti
  • We also know the velocity as function of time ti and some later time ti
  • Even if the velocity isn’t constant, we can divide the motion into N steps in which it is approximately constant and compute the final position as:
  • The total displacement of  is the area under the curve
  • Sf= Si + area under the velocity curve us between Si and Sf

We also discuss several other topics like How many grams of asprin are in a 325­mg tablet?

Motion with Constant Acceleration

SI units= m/s2

We also discuss several other topics like How are the elements become connected?

Constant Acceleration

The Kinematic Equation Constant Acceleration

  • Four variables
  • Sf for final position
  • Vf for final velocity
  • A for acceleration
  •  for the time interval

Three Initial Conditions

  • Si for initial position
  • Vi for initial velocity
  • Ti for initial time (usually

Formulas

Calculus Derivation:

  • These are two ways to work to write average velocity
  • It’s always true that

  • If a is constant, then v is a linear function of t, making
  • Setting those two equations equal to each other gives:
  • Now start with
  • Substitute in

  • You get

When to use the equation

Example 2.11

Free Fall

  • The motion of an object moving under the influence of gravity only, and no other forces, is called free falling

  • The objects dropped from the same height will, if air resistance can be neglected, hit the ground at the same time with the same speed.

  • Consequently, any two objects in free fall, regardless of their mass (9,8- m/s2 vertically downward)

  • The velocity graph is a straight line with a slope
  • ay= a free fall =- g

  • Where g is a positive which is equal to 9.80 m/s2 on the surface of earth

  • Other planets have different values of g

  •  A ball is tossed straight in the air, at it’s very highest point, the ball’s instantaneous acceleration is negative

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