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The range of a projectile fired at an an...

The range of a projectile fired at an angle of `15^@` is 50 m. If it is fired with the same speed at an angle of `45^@` its range will be

A

60m

B

71m

C

100m

D

141m

Text Solution

Verified by Experts

The correct Answer is:
C
Horizontal range, `R =(u^(2) sin 2 theta)/(g)`
For the same speed, `R prop sin 2 theta`
`R=(u sin 2 theta)/(g)`
`:.R_(2)=R_(1)=(sin90^(@))/(sin30^(@))=50mxx(1)/((1//2))=100m`
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