Question

1.
A ball of mass 500 gram strikes a wall with a velocity of
80 m/s and rebounds with the same velocity. If the time of
contact is 1/30 sec, then the force exerted by the ball on
the wall is
(a) 2000 N
(b) 2200 N
(c) 2400 N
(d) 2500 N​

Answer 1

Answer:

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