Momentum and Impulse- Review

Momentum and Impulse- Review

Momentum

• Quantity of motion

• p=mxv

• Describe an instance where two objects can have the same momentum

Open Ended

A bean bag and ball are each 1 kg. both fall to the earth at 4 m/s. The beanbag stops, the ball bounces back up.Which will have the greater change in momentum? Why?

Momentum

• The momentum in a system is a vector sum.

• This means that multiple objects in a system can either increase or decrease the system.

Open Ended

Describe a system where multiple objects increase the momentum in a system.

Impulse

• Described two ways

• 1. Force acting for a time. I= F x t

• 2.Impulse is change in momentum.

•  $I=\ \Delta p$  

•  $\Delta p\ =\ F\Delta t$  

•  $m\Delta v=F\Delta t$  

Open Ended

If you dropped an egg from 3m high how would you keep it from breaking? Explain your reasoning.