This document provides instructions on how to solve momentum problems in physics. It defines momentum as mass times velocity (p=mv) and explains that the total momentum of a system is equal to the vector sum of the momentum of objects within it. It also states that the change in momentum of an object is equal to the applied force times the time over which it acts (p2-p1=Ft). The document then works through an example problem involving calculating the average force and final momentum of a golf ball hit by a club to demonstrate how to apply these momentum equations.

1. How to solve Momentum
Problems

2. 1) Momentum is defined as
p=mv
it is a vector quantity
2) So if we know the mass and velocity , we can
momentum easily.
3) The momentum of system is equal to vector sum of
momentum of the object with in it
4) The change in momentum of body is equal Force
applied X time taken
p2-p1=Ft
What is Momentum

3. A golfer hits a golf ball of mass .2 kg and the ball
leaves the club with the velocity 10 m/s. The ball
and club remain in contact for .006s
1) Find the average force exerted by the club on the
ball
2) Find the ball’s final momentum
Question

4. 1)First get a clear picture of the problem
2)Here the momentum change is due to force
exerted by club on the ball
So
Ft=p2-p1
Fx.006=.2X10 -0
F=666 N
3) Final momentum is given by momentum formula
p2=mv=2 kgm/s
Solution

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