Physics
A body is acted upon by a force. State two conditions when the work done is zero.
Work, Energy & Power
233 Likes
Answer
The two conditions for the work done to be zero are,
(i) When there is no displacement of the body on application of force
i.e. S = 0 and
(ii) When displacement is normal to the direction of force
i.e. θ = 90° as cos 90° = 0
Answered By
138 Likes
Related Questions
Define work. When is work said to be done by a force?
How is the work done by a force measured when
(i) force is in direction of displacement,
(ii) force is at an angle to the direction of displacement?
When a body moves in a circular path, how much work is done by the body? Give reason.
A satellite revolves around the earth in a circular orbit. What is the work done by the satellite? Give reason.