Q. A projectile $A$ is thrown at an angle of $30{^\circ}$ to the horizontal from point $P$. At the same time, another projectile $B$ is thrown with velocity $v^{2}$ upwards from the point $Q$ vertically below the highest point. For $B$ to collide with $A,\ \frac{v_{2}}{v_{1}}$ should be

A) 1
B) 2
C) $\frac{1}{2}$
D) 4
Explanation

(c) Equating velocities along the vertical,
$v_{2} = v_{1}\sin{30{^\circ}}\ or\ \ \ \frac{v_{2}}{v_{1}} = \frac{1}{2}$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.