Question

A bullet is fired from a cannon with velocity 500 m/s. If the angle of projection is ${15}^{\circ }$ and $g=10m/s^2$. Then the range is

• A. $25\times {10}^{3}m$
• B. $12.5\times {10}^{3}m$
• C. $50\times {10}^{2}m$
• D. $25\times {10}^{2}m$

Answer 1

The correct option is B

$12.5\times {10}^{3}m$

$R=\frac{u^{2}sin2\theta }{g}=\frac{(500{)}^2\times sin{30}^{\circ }}{10}=12.5\times {10}^{3}m$