Question

Two projectiles A and B are projected with angle of projection 15° for the projectile A and 45° for the projectile B. If RA and RB be the horizontal range for the two projectiles, then

(a) RA < RB

(b) RA = RB

(c) RA > RB

(d) the information is insufficient to decide the relation of RA with RB.

Answer 1

(d) the information is insufficient to decide the relation of RAwith RB.

Explanation:

The range of a projectile depends upon the projected velocity and the angle of projection as is clear from the formula R= (u2 /g) Sin2θ

But in this question only angle of projection is given, not the projected velocity.