Advertisements
Advertisements
Question
When a body moves in a circular path, how much work is done by the body? Give reason.
(Hint: The body is acted upon by the centripetal force.)
Advertisements
Solution
When a body moves in a circular path, no work is done since the force on the body is directed towards the centre of circular path (the body is acted upon by the centripetal force), while the displacement at all instants is along the tangent to the circular path, i.e., normal to the direction of force.
APPEARS IN
RELATED QUESTIONS
State two factors on which power spent by a source depends. Explain your answer with examples.
Name the quality which is measured in kWh.
kWh is the unit of ______.
Name the quality which is measured in eV
State the principle of moments.
An engine does 54,000 J of work by exerting a force of 6000 N on it. What is the displacement in the direction of the force?
How much force is applied on a body when 150 J of work is done in displacing the body through a distance of 10 m in the direction of the force?
Give the units of couple.
In the following case write yes, if the work is being done and no if no work is being done.
A man trying to push a wall.
State the C.G.S. unit of work. How it is related to its S.I. unit?
