1)

 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 , g= 10 m/s2]


A) 100 m

B) 90m

C) 80 m

D) $90 \sqrt{2}$

Answer:

Option B

Explanation:

Maximum range occurs , when angle of throw $\theta =45^{0}$

Also , range  maximum= $\frac{ u^{2} \sin 2 \theta}{g}$$|_{\theta=45^{0}}$

 $\frac{u^{2}}{g}=\frac{100}{10}=90 m$