Physics Questions

A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2. m. During the collision, the per cent loss in the kinetic energy is

Which object converts electricity to light?

When the car takes a bend, the force that pushes us to the outside of the curve is the

A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)

If the distance travelled by an object is zero, then the displacement of the object

Calculate the work done by the force of gravity when a satellite moves in an orbit of radius 40,000 km around the earth.

A compressed spring possesses more energy than a spring of normal length because the compressed spring has

A high jumper runs for a while before taking a high jump so that the inertia of __ helps him take the long jump.