Impulse
(a) Calculate the impulse that one ball exerts on the other in the completely inelastic head-on collision of two 500-g balls, each of which is approaching the other with speed 100 cm/s.
(b) What is the impulse if the collision is elastic?
(c) If we assume that the time of the collision in (a) and (b) is 1.0 X 10-3 s, find the average force in each case:
![1137_f8707043-4714-4020-b27f-3456664ca81d.png](https://secure.tutorsglobe.com/CMSImages/1137_f8707043-4714-4020-b27f-3456664ca81d.png)