Momentum

The equation to find momentum is p=mv. Change in p (or impulse)=pf-pi, or you can find the change in momentum (p) by using fnet, using the eqaution fnet=delta p/delta t or fnet(delta t)=delta p
On a graph when you are trying to find impulse, you do the area of the filled in part.
There are two types of momentum transfomations: elastic and inelastic.

Elastic(bounce off)- This is when two objects bounce off of each other. When something is perfectly elastic Eki=Ekf. The equation for elastic problems M1V1i+M2V2i=M1V1f+M2V2f.

Inelastic(stick together)- This is when two objects stick together. When this happens Eki does not equal Ekf. The equation you would use for an inelastic problem is M1V1+M2V2=(M1+M2)V3.

You can solve the same question with different methods. Using Momentum would be when you know the mass and velocity, or force and time.

Energy VS Momentum
Energy Differnces
Similarities
Momentum Differnces
Scalar(direction doesn't matter)
Conserved
Vector(direction matters)
Unit: J/nm
System is important
Unit: Fgm/s
More general
Fundamental laws
Motion

Mechanisms for moving in or out
Multiple objects moving

Work and Impulse


Depends on mass