Work done by friction on surface by a body in rotational and translational motion
Physics Asked by StoneZoo on March 30, 2021
The point of contact is being displaced along the surface. This would imply that some work is being done on the surface by friction. But there is no work done by friction on the ground. Please provide a detailed explanation.
One Answer
See my post here: Where does a torque-invoking force belong in work energy theorem? (instead of tension, think friction).
Essentially, there is work done while translating and work done due to the rotation. These works cancel.
Correct answer by user256872 on March 30, 2021
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