Question
The work done by a force when a body moves in a circular path ?
(a) positive
(b) negative
(c) Zero
(d) none of these
(a) positive
(b) negative
(c) Zero
(d) none of these
Answers
GPT-4o mini
The work done by a force when a body moves in a circular path is (c) Zero.
This is because the direction of the centripetal force acting on the object in circular motion is always perpendicular to the direction of the displacement of the object. Since work is defined as the dot product of force and displacement, and in this case, the angle between the force and displacement is 90 degrees, the work done is zero.
This is because the direction of the centripetal force acting on the object in circular motion is always perpendicular to the direction of the displacement of the object. Since work is defined as the dot product of force and displacement, and in this case, the angle between the force and displacement is 90 degrees, the work done is zero.