A body is rolling without slipping on a horizontal surface and its rotational kinetic energy is equal to the translational kinetic energy. The body is

Question

A body is rolling without slipping on a horizontal surface and its rotational kinetic energy is equal to the translational kinetic energy. The body is (A) disc (B) sphere (C) cylinder (D) ring

Tardigrade Admin · Accepted Answer

Krot=K (1/2)Iω 2=(1/2)mv2=(1/2)MR2ω 2 I=MR2 Therefore, body is a ring.

Q. A body is rolling without slipping on a horizontal surface and its rotational kinetic energy is equal to the translational kinetic energy. The body is

disc

sphere

cylinder

ring

$K_{ro t} = K$ $\frac{1}{2} I ω^{2} = \frac{1}{2} m v^{2} = \frac{1}{2} M R^{2} ω^{2}$ $I = M R^{2}$
Therefore, body is a ring.

Q. A body is rolling without slipping on a horizontal surface and its rotational kinetic energy is equal to the translational kinetic energy. The body is

disc

sphere

cylinder

ring

Krot​=K 21​Iω2=21​mv2=21​MR2ω2 I=MR2 Therefore, body is a ring.

$K_{ro t} = K$ $\frac{1}{2} I ω^{2} = \frac{1}{2} m v^{2} = \frac{1}{2} M R^{2} ω^{2}$ $I = M R^{2}$
Therefore, body is a ring.