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Velocity of a stone projected, 2 second ...

Velocity of a stone projected, 2 second bofore it reaches the maximum height makes angle `53^@` with the horizontal then the velocity at highest point will be

A

`20 m//s`

B

`15 m//s`

C

`25 m//s`

D

`80//3 m//s`

Text Solution

Verified by Experts

The correct Answer is:
B
Two second before maximum height `v_(y)=gxx2=20 m//s`

`tan53^(@) =20/(v_(x)) v_(x)=15 m//s`
at maximum height `v=v_(x) =15 m//s`
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