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Question

A bullet fired horizontally hits the ground in 0.5 sec. If it had been fired with a much higher speed in the same direction, and neglecting air resistance and the earth’s curvature, it would have hit the ground in

Answer 1

It would still hit the ground in 0.5 seconds, since its initial travel is horizontal, starting from the same height. The only difference is that it would travel a longer horizontal distance in the same amount of time, due to the higher horizontal speed.