Question

92.
Which of the following types of force can do no work on the
particle on which it acts?
(a) frictional force
(b) gravitational force
(c) elastic force
(d) centripetal force

Answer 1

Answer:

d

Explanation:

There are many important examples of forces which do no work because they act perpendicular to the motion. For circular motion, the centripetal force always acts at right angles to the motion. It changes the direction of the motion, but it does no work on the object. This can be applied to any circular orbit.

Answer 2

Explanation:

d)centripetal force

is your answer