Momentum and CollisionHard
Question
A small ball falling vertically downward with constant velocity 4m/s strikes elastically a massive inclined cart moving with velocity 4m/ s horizontally as shown. The velocity of the rebound of the ball is
Options
A.4√2 m/s
B.4√3 m/s
C.4 m/s
D.4√5 m/s
Solution
Cart frame
Ground frame
The velocity of rebound = 4√5 m/s
Ground frame
The velocity of rebound = 4√5 m/s
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