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The range of a projectile launched at an...

The range of a projectile launched at an angle of `15^(@)` with horizontal is 1.5km. The range of projectile when launched at an angle of `45^(@)` to the horizontal is

A

`3 km`

B

`4.5 km`

C

`1.5 km`

D

`2.5 km`

Text Solution

Verified by Experts

The correct Answer is:
C
`R_(1)=(u^(2) sin 2theta_(1))/g,R_(2)=(u^(2)sin 2theta_(2))/g`
`R_(2)-R_(1),H=u_(y)^(2)/(2g)`
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