Property of moving things
Means inertia in motion
Mass is a measure of the inertia an object has that is the resistance to changes in motion
Mass is a property
Newtons second law relates force mass and acceleration
Summary, and Study Guide
Momentum is defined as: Momentum = Mass * Velocity
Velocity is a vector
Mass is a scalar
Momentum is a vector
When a scalar is multiplied times a vector the result is a vector
In order to change the momentum of
1. What are units of measurements for tangential speed?
Meters per second
2. What are the units of measurement for rotational speed?
3. What is rotational inertia?
What is the acceleration of a piece of dust on an old-fashioned record album, 15 cm
from the center, if the record is spinning at 33.3 rpm?
Answer: 1.82 m/s/s. To find a
1. Use equations below in order to do Linear Motion problems.
Equation 1: Speed, average speed, or velocity = d/t
Equation 2: Acceleration (a) = (V2 V1)/ (T2- T1)
Equation 3: At rest, V1= T1= 0: a = V/T - V = at
Equation 4: a = g (10 m/s2, starting at res
Chapter 4 Kinematics In Two Dimensions
4.1 The Kinematic Equations in Vector Form
In chapter 2 we discussed motion in one dimension only. And although the
displacement, velocity, and acceleration of a body are vector quantities, we did not
write them in t
(Angled) Projectile Motion Hints & Formulas
I. Terminology applicable to ANGLED (not horizontal) LAUNCHES!
A. Initial velocity (V0) at launch angle => a vector describing the
characteristics of the velocity always break this into x (Vx) and y (Vy)