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A ball is projected vertically upwards w...

A ball is projected vertically upwards with a velocity of 24.5 m/sec from the bottom of a tower. A boy who is standing at the top of the tower is unable to catch the ball when it is passing by him in the upwards direction. But the ball again reaches him after 3 seconds when it is falling and then he catches it. The velocity of the ball when the boy caught it and the height of the tower are

A

`10 m//"sec", 15 m`

B

`14.7 m//"sec"`, 19.6 m

C

`15 m//"sec"`, 20 m

D

None

Text Solution

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The correct Answer is:
B
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