1
Chapter 5:
Linear Momentum
Plan
1
. Definition of linear momentum
2. What can change linear momentum?
3.
Impulse
4.
Why linear momentum is conserved
5. Solving Problems
Chapter 5: Homework
z
Key Terms and Matching Definitions
z
Review Questions: 1, 4, 6, 8, 12, 15, 18, 19
z
Exercises: 2, 5, 8, 12, 15, 17
z
Problems: 1, 2, 3, 4
Definition
MOMENTUM= MASS
×
VELOCITY
or, in shorthand notation,
p=
m
v
Linear momentum is a vector quantity!
Linear momentum
Linear Momentum: Examples
Problem 1
A car with
a mass of 1000 kg moves at 20
m/s. What is the linear momentum of the
car?
Answer:
P = 1000 (kg)
×
20 (m/s) = 20,000 kg·m/s
or 20,000 N·s
Proof:
kg·m/s
= N·s

This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*