Questions
Work done by friction in case of pure rolling
a
is always zero .
b
is always positive
c
is always negative
d
may be positive, negative or zero
detailed solution
Correct option is A
Work done by friction in pure rolling is always zero. It is because there is no displacement by frictional force. Friction works only in case of rolling with sliding.Talk to our academic expert!
Similar Questions
A body is rolling on a horizontal surface without slipping by horizontal force F as shown in figure. If force of friction acting on it is zero, then body is definitely
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