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
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
Question ID - 53251 | SaraNextGen Top Answer
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
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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 |
|
(d) When a body rolls down an inclined plane, it is accompanied by rotational and translational kinetic energies. Rotational kinetic energy Where Translational kinetic energy
where Given, Translational KE=rotational KE
Since,
We know that |
is moment of inertia and 
the angular velocity.
is mass, 
the velocity and 
the angular velocity.
is the moment of inertia of hollow cylinder about its axis is where 
is mass of hollow cylinderical body and 
the radius of cylinder.