Question

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. $30m{s}^{-1}$
• B. $42m{s}^{-1}$
• C. $32m{s}^{-1}$
• D. $35m{s}^{-1}$

Answer 1

The correct option is C

$32m{s}^{-1}$

$R_{max}=\frac{u^2}{g}=100\Rightarrow u=10\sqrt{10}=32m/s$