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From the top of tower, which is 19.6 m h...

From the top of tower, which is `19.6` m high, a blls in thrown horizonally. If the line joining the point of projection to the point where it hits the ground makes an angle of `45^(@)` with the horizontal, then the initial velocity of the ball is

A

`9.8" ms"^(-1)`

B

`4.9" ms"^(-1)`

C

`14.7" ms"^(-1)`

D

`2.8" ms"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
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