A frictionless inclined plane of length 20 m has a maximum vertical height of 5 m. If an object of mass 2 kg is placed on the plane, which of the following best approximates the net force it feels ?

An object of mass 8 kg is placed at a height of 5 m above the ground. What kind of energy does this object possess?

There are two inclined planes with the same vertical height, but with different angles of inclination. Two bodies of mass m each are placed at the bottom of the inclined plane. Two external forces of equal magnitude do work in taking the bodies to the top of the inclined plane. Which force does more work?

If an inclined plane of length 2 m is used to lift a load of 20 N to a height of 1 m, find the effort required to lift the load to that heiht using inclined plane.

A solid cylinder at rest at top of an inclined plane of height 2.7 m rolls down without slipping. If the same cylinder has to slide down a frictionless inclined plane and acquires the same velocity as that acquired by centre of mass of rolling cylinder at the bottom of the incline, what should be the height of inclined plane?

A very heavy box is kept on a frictionless incline plane inclined at an angle theta from the horizontal. Box is having an another frictionless incline plane, inclined plane as shown in the figure. A block of mass m is kept on this inclined plane inside the box. Acceleration of block w.r.t. box is

A block of mass 1 kg slides down a rough inclined plane of inclination 60^(@) starting from its top. If coefficient of kinetic is 0.5 and length of the plane d=2 m, then work done against friction is

A particle of mass 0.2 kg has an intial speed of 5 ms^(-1) at the bottom of a rough inclined plane of inclination 30^(@) and vertical height 0.5 m . What is the speed of the particle as it reaches the top of the inclined plan ? (Take mu = 1//sqrt3 , g = 10 ms^(-2) ) .