*This preview shows
page 1. Sign up
to
view the full content.*

**Unformatted text preview: **dp is related to the collision force F as The total change in the of momentum during the collision is given by The right hand side of this equation is a measure of both the strength and the duration of the collision force. It is called the collision impulse J : The unit of the impulse is N . s. From the definition of the impulse J we see that the relation between the impulse and the change of momentum is given by If the average collision force F av acts during a time period equal to [Delta]t, the impulse J is equal to F av [Delta]t = J Sample Problem 10-1 A baseball of mass m in horizontal flight with speed v i is struck by a batter. After leaving the bat, the ball travels in the opposite direction with a speed v f . What impulse J acts on the ball while it was in contact with the bat ? If the impact time is [Delta]t, what is the average force that acts on the baseball ? What is the average acceleration of the baseball during this period ?...

View
Full
Document