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A projectile takes off with an initial v...

A projectile takes off with an initial velocity of 50m//s at an angle of `37^(@)` with horizontal, It is just able to clear two hurdles of height `25m` each, separated from each other by a distance `d` Calculate `d`.

A

`160m`

B

`50m`

C

`320m`

D

`40m`

Text Solution

Verified by Experts

The correct Answer is:
A

At point A
`v_(y)^(2)=u_(y)^(2)+2a_(y)rArry_(y)^(2)=30^(2)+2(-10)(25)=900-500=400`
`rArrv_(y)=20m//s`
Time from A to B
`(2v_(y))/(g)=(2(20))/(10)=4s`
`rArrd=40xx4=160m`
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