If a solid sphere, disc and cylinder are allowed to roll down an inclined plane from the same height

A solid sphere and a hollow sphere of the same mass and diameter, both initially at rest , roll down the same inclined plane. Which reaches the bottom first?

When a sphere, ring, disc and a spherical shell are coming down on an inclined plane, rolling without slipping, which will reach the ground first?

One hollow and one solid cylinder of the same outer radius rolls down on a smooth inclined plane. The foot of the inclined plane is reached by :

Two solid sphere of the same mass and same radius, one solid and other hollow. Which one have greater moment of inertia about a diameter?

A body slides down a smooth inclined plane when released from the top , while another body falls freely from the same point. Which one will strike the ground earlier?

Two bombs of 20 kg and 30 kg are thrown from a cannon with the.same velocity in the same direction. Which bomb will reach the ground first?

Two copper spheres of same radii, one hollow and the other solid, are charged to the same potential. Which, if any, of the two would hold more charge ?

Torques of equal magnitude are applied to a hollow cylinder and a solid sphere, both having the same mass and radius. The cylinder is free to rotate about its standard axis of symmetry, and the sphere is free to rotate about an axis passing through its centre. Which of the two will acquire a greater angular speed after a given time?

A solid cylinder of radius 5 cm and mass 0.5 kg rolls down an inclined plane (1 in 10). Calculate the acceleration and total energy of the cylinder after 10 S.