A projectile is projected from the ground with horizontal component of initial velocity 20 m/s and vertical component 25 m/s. It returns to the same horizontal level. Neglect air resistance and take g = 10 m/s². The horizontal distance covered during the last one second of its flight is:
Options

Question

A projectile is projected from the ground with horizontal component of initial velocity 20 m/s and vertical component 25 m/s. It returns to the same horizontal level. Neglect air resistance and take g = 10 m/s². The horizontal distance covered during the last one second of its flight is:

Options

G1 Physics · Accepted Answer

Horizontal velocity remains constant at 20 m/s throughout the flight. Therefore in any interval of 1 s, including the last one second, horizontal distance covered = vₓΔt = 20×1 = 20 m. Therefore option B is correct.