ch09-p091 - 91. (a) If m is the mass of a pellet and v is...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
(d) If Δ t is the time interval for a pellet to be brought to rest by the wall, then the average force exerted on the wall by a pellet is F p t avg kg m s s N. == × Δ 10 06 10 17 10 3 3 . . . The force is in the direction of the initial velocity of the pellet. (e) In part (d) the force is averaged over the time a pellet is in contact with the wall, while in part (c) it is averaged over the time for many pellets to hit the wall. During the majority of this time, no pellet is in contact with the wall, so the average force in part (c) is much less than the average force in part (d). 91. (a) If m is the mass of a pellet and v is its velocity as it hits the wall, then its
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

Ask a homework question - tutors are online