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A ball is thrown horizontally from top o...

A ball is thrown horizontally from top of a tower with velocity `30 m//s`. During its motion, at a particular point horizontal and vertical components of velocity are equal. The time to reach to the instant will be :

A

3 sec

B

4 sec

C

5 sec

D

6 sec

Text Solution

Verified by Experts

The correct Answer is:
A
`v_(x) = u = 30 m//s`
`v_(y) = u_(y) + g t = 10 t`
`v_(x) = v_(y)`
`30 = 10t`
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