question_answer

A ball is allowed to fall from a height of 10 m. If there is 40% loss of energy due to air friction, then velocity of the ball when it hit the ground is

A) \[\sqrt{190}m/s\]

B) \[\sqrt{180}m/s\]

C) \[\sqrt{150}m/s\]

D) \[\sqrt{120}m/s\]