ch09-p055 - 55. (a) Let v be the final velocity of the...

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55. (a) Let v be the final velocity of the ball-gun system. Since the total momentum of the system is conserved mv i = ( m + M ) v . Therefore, (60 g)(22 m/s) 4.4 m/s 60 g + 240 g i mv v mM == = + . (b) The initial kinetic energy is Km v ii = 1 2 2 and the final kinetic energy is M v m v m M fi =+ = + 1 2 2 1 2 22 b g b g . The problem indicates Δ E th = 0, so the difference K i – K
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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.

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