A ball is projected vertically upwards with a velocity of 25 ms-1 from the bottom of a tower. A boy who is standing at the top…..

Q. A ball is projected vertically upwards with a velocity of 25 ms-1 from the bottom of a tower. A boy who is standing at the top of a tower is unable to catch the ball when it passes him in the upward direction. But the ball again reaches him after 3 sec when it is falling. Now the boy catches it Then the height of the tower is (g = 10 ms-2)

(a) 5 m

(b) 10 m

(c) 15 m

(d) 20 m

Ans: (d)

Author: Rajesh Jha

QuantumStudy.com

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