Question

A body is thrown with a velocity of 9.8 m/s making an angle of ${30}^{\circ }$ with the horizontal. It will hit the ground after a time

• A. 1.5 s
• B. 1 s
• C. 3 s
• D. 2 s

Answer 1

The correct option is B

1 s

$T=\frac{2usin\theta }{g}=\frac{2\times 9.8\times sin{30}^{\circ }}{9.8}=1sec$