Q. A cricketer can throw a ball to a maximum horizontal distance of $100\ m$. The speed with which he throws the ball is (to the nearest integer)
A) $30\ ms^{- 1}$
B) $42\ ms^{- 1}$
C) $32\ ms^{- 1}$
D) $35\ ms^{- 1}$
Explanation
(c) $R_{\max} = \frac{u^{2}}{g} = 100 \Rightarrow u = 10\sqrt{10} = 32\ m/s$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.