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The range of a projectile, when launche...

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

A

1.5 km

B

3.0km

C

6.3 km

D

0.75 km

Text Solution

Verified by Experts

The correct Answer is:
B
`R_(15^@)=(u^2 sin (2xx15^@))/g = u^2/(2g)` =1.5 km
`R_(45^@)=(u^2 sin (2xx45^@))/g =u^2/g = 1.5xx2` =3km
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