Question

A cricket player can throw a ball with an initial speed of $30\, m / s$. What is the maximum range of the player can throw the ball? Neglect air resistance. [Take, $\left. g=10\, m / s ^{2}\right]$

• A. 100 m
• B. 90 m
• C. 80 m
• D. $90 \sqrt{2} m$

Answer 1

Answer: (B)

Maximum range occurs, when angle of throw $\theta=45^{\circ}$
Also, range maximum $=\left.\frac{u^{2} \sin 2 \theta}{g}\right|_{\theta=45^{\circ}}$
$=\frac{u^{2}}{g}=\frac{900}{10}=90\, m$