Chapter 1: Momentum and Impulse Flashcards
1
Q
What are the units for momentum and impulse?
A
Ns (newton seconds)
2
Q
Equation for momentum
A
momentum = mv
3
Q
Equation for impulse using mass, initial speed and final speed
A
I = mv - mu
4
Q
Is momentum vector or scalar?
A
Vector - has direction
5
Q
What does impulse measure?
A
Change in momentum
6
Q
Equation for impulse, using force and time
A
I = Ft
7
Q
What happens when two particles collide (in terms of forces and impulse)
A
Exert same force on each other
Impulse is same in magnitude, different in direction
8
Q
Momentum before collision = ?
A
Momentum before collision = momentum after collision
do mv for each object then add
