Advertisements
Advertisements
प्रश्न
What is the work done when the object acted upon by a force remains at rest?
Advertisements
उत्तर
The work done is zero because the displacement is zero.
APPEARS IN
संबंधित प्रश्न
Power spent by a body depends on the time for which it does work.
The S.I. unit of energy is .............
How much work is done when a body of mass m is raised to a height h above the ground?
A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. If the value of g be 10 m/s2, the work done by the girl against the gravitational force will be :
Name the physical quantity whose SI unit is Nm.
Name the type of energy possessed by a
(i) stretched catapult (ii) hot iron
(iii) wound up clock
What should be the characteristic of a source of energy?
Calculate the work done when:
A 5 kg weight is lifted 10 m vertically. (g = 9.8 m/s2)
