momentum Flashcards
1
Q
Equation and units for:
Momentum
A
Mass * Velocity (kgm/s)
2
Q
What is a broad definition of momentum
A
How hard it is to stop an object from moving
3
Q
Scalar or vector
Momentum
A
Vector
4
Q
Define
Impulse
A
The change in momentum of a body, usually caused by a collision or impact.
5
Q
Calculate
change in momentum/impulse
A
- Δp=mvinitial−mvfinal
- Force * time
This also means that F = * Δmomentum / Δtime (Δp/Δt)
6
Q
A 0.4 kg football is rolling along the ground at a speed of 2 m/s. A player kicks the ball in the same direction and it now moves at 10 m/s. Calculate the impulse provided by the kick.
A
3.2 kg m/s
7
Q
A
