(d) If Δtis 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 Fptavgkg m ssN.==⋅×=×−Δ1006 1017 1033...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 mis the mass of a pellet and vis its velocity as it hits the wall, then its
This is the end of the preview. Sign up
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.