1.

A ball of mass 0.2 kg moves with a velocity of 20 m/sec and it stops in  0.1 sec; then the force on the ball is            [BHU 1995]

A.                         40 N             
B.                         20 N            
C.                         4 N                 
D.                         2 N
Answer» B.                         20 N            


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