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A ball projected upwards from the foot of a tower. The ball crosses the top of the tower twice after an interval of `6 s` and the ball reaches the ground after `12 s`. The height of the tower is `(g = 10 m//s^2)` :

A

20m

B

30m

C

60m

D

50m

Text Solution

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The correct Answer is:
C
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MOTION-KINEMATICS-EXERCISE 1 OBJECTIVE PROBLEMS
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