A man holds a ball of mass (1/2) kg in his hand. He throws it vertically upward. During this process his hand moves up by 40 cm and the ball leaves his hand with an upward velocity of 4ms -1 . The constant force with which the man pushes the ball is
Text Solution
Verified by ExpertsThe correct answer is:
C
Acceleration of the ball
a = 
= 
= 20 m/s 2
Hence force applied by the man = 
= 15 N
Hence the correct choice is
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