A ball of mass m is raised to height h and then dropped to the ground. When the ball reaches the ground, the velocity of the ball is (neglecting air resistance), where g is the acceleration due to gravity.

A ball of mass m is raised to height h and then dropped to the ground.

1.	A ball of mass m is raised to height h and then dropped to the ground. When the ball reaches the ground, the velocity of the ball is (neglecting air resistance), where g is the acceleration due to gravity.
A.	\(\sqrt {g\;h}\)
B.	\(\sqrt {2g\;h}\)
C.	\(\sqrt {g\;h/2}\)
D.	\(2\sqrt {g\;h}\)
Answer» C. \(\sqrt {g\;h/2}\)

Discussion

No Comment Found

Related MCQs

An elevator has a downward acceleration of 0.1 g m/s2. What force will be transmitted to the floor of elevator by a man of weight ‘W’ travelling in the elevator?
A ball of mass m is raised to height h and then dropped to the ground. When the ball reaches the ground, the velocity of the ball is (neglecting air resistance), where g is the acceleration due to gravity.
A stone is dropped into a river from a stationary balloon 405 m above water. Another stone is thrown vertically down 1.00 s after the first is dropped. The stones strike the water at the same time. Time initial speed of the second stone is (acceleration due to gravity g = 10 m/s2)
A satellite is kept on moving in its orbit around the earth due to ________.
A particle starts from rest and moves in a straight line whose equation of motion is given by S = 2t3 - t2 - 1. The acceleration of the particle after one second will be-
A particle is moving in a circle with uniform speed. Its motion is
A body is thrown vertically upwards with an initial velocity 15 m/s. How much time would the body take to get back to the point from where it was thrown?(g = 10 m/s2)
A bicycle and rider travelling at 12 km/hr on a level road have a mass of 105 kg. A brake is applied to a rear wheel having 800 mm diameter. The pressure on the brake is 80 N and the coefficient of friction is 0.06. The number of turns of the wheel before coming to rest will be
A force acting on a body of mass 1.5 kg, accelerates it from rest to a velocity of 4 m/s. The change in the momentum of the body is
A bullet a mass m kg is fired horizontally with a velocity v m/s from a pistol of mass M kg. The recoil velocity of the pistol is

A ball of mass m is raised to height h and then dropped to the ground. When the ball reaches the ground, the velocity of the ball is (neglecting air resistance), where g is the acceleration due to gravity.

Discussion

No Comment Found

Related MCQs

Reply to Comment