A body is rolling down an inclined plane. Its translational and rotational kinetic energies are equal. The body is a |
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a) |
Solid sphere |
b) |
Hollow sphere |
c) |
Solid cylinder |
d) |
Hollow cylinder |
A body is rolling down an inclined plane. Its translational and rotational kinetic energies are equal. The body is a |
|||||||
a) |
Solid sphere |
b) |
Hollow sphere |
c) |
Solid cylinder |
d) |
Hollow cylinder |
(d) When a body rolls down an inclined plane, it is accompanied by rotational and translational kinetic energies. Rotational kinetic energy Where is moment of inertia and the angular velocity. Translational kinetic energy where is mass, the velocity and the angular velocity. Given, Translational KE=rotational KE Since, We know that is the moment of inertia of hollow cylinder about its axis is where is mass of hollow cylinderical body and the radius of cylinder. |