A bullet fired horizontally over level ground hits the ground in 0.5 second.If it had been fired with twice the speed in the same direction,it would have hit the ground in
A)less than 0.5 s.
B)more than 0.5 s.
C)0)5 s.

Question

Quizplus · Accepted Answer

The time of flight of a projectile depends only on the vertical component of velocity and the acceleration due to gravity. Since the bullet is fired horizontally, the vertical component of velocity is zero. Therefore, the time of flight is the same regardless of the initial speed. Thus, firing with twice the speed would not change the time of flight and the bullet would still hit the ground in 0.5 s.

A Bullet Fired Horizontally Over Level Ground Hits the Ground