Question 684: Centre of Mass and Rotational Motion

Question

A drum of radius R and mass M, rolls down without slipping along an inclined plane of angle $$	heta $$. The frictional force

Accepted Answer

It is noted that net work done by frictional
force when drum rolls down without slipping is
zero, so W
net
= 0
W
trans
+ W
rotational
= 0
ÃÂK
trans
+ ÃÂK
rotational
= 0
ÃÂK
trans
= Ã¢ÂÂ ÃÂK
rotational
Hence, frictional force converts translational energy to rotational energy.

Answer

dissipates energy as heat

Answer

decreases the rotational motion

Answer

decreases the rotational and translation motion

Answer

converts translational energy to rotational energy.

Centre of Mass and Rotational Motion

A drum of radius R and mass M, rolls down without slipping along an inclined plane of angle $\theta $. The frictional force

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