If the mass of the ball were greater and it was thrown with the same velocity,...
If the mass of the ball were greater and it was thrown with the same velocity, then how would this affect the recoil velocity of the skater? Why? Now choose from one of the following optionsWhy?
a The recoil velocity of the skater would be greater because the final speed of the skater is directly proportional to the mass of the ball.
b The recoil velocity of the skater would be less because the final speed of the skater is inversely proportional to the mass of the ball.
c The recoil velocitywill remain the same as it is independent of the mass of ball.
d The recoil velocity will increase constantly because the net external force becomes nonzero.
Homework Answers
by momentum conservation
Pi= Pf
0 = M_ball* V_ball + m*V_recoil
V_recoil = -M_ball* V_ball /m
a The recoil velocity of the skater would be greater because the final speed of the skater is directly proportional to the mass of the ball.
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