Question

A cannon ball is fired horizontally with an initial velocity of 50 m/s. If it takes 5 seconds for the ball to fall to the ground, how large of a horizontal distance did it travel?

Answer 1

The cannon ball is fired horizontally. The initial horizontal velocity of the cannon ball is .

Time taken by the ball to reach ground is t=5 seconds.

The acceleration of the ball in the horizontal direction is zero, the horizontal velocity does not change with time. The horizontal velocity of the ball throughout the motion is

The horizontal distance covered by the ball in 5 seconds is

$x=v_xt$

$x=(50\ m/s)\times(5\ s)$

$\boxed{x=250\ m}$