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संबंधित प्रश्न
Write an expression for the work done when a force is acting on an object in the direction of its displacement.
No work is done by a force if the body
Write the expression for work done by a force.
State two factors on which the work done on a body depends.
A body, when acted upon by a force of 10 kgf, moves to a distance 0.5 m in the direction of force. Find the work done by the force. Take 1 kgf = 10 N.
Name the forms of energy which a wound-up watch spring possesses.
A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:
The loss in potential energy of the body,
Is work a scalar or a vector quantity?
Fill in the blank with suitable word :
1 joule is the work done when a force of 1 __________ moves an object through a distance of one __________ in the direction of __________.
A person of mass 50 kg climbs a tower of height 72 metres. Calculate the work done. (g = 9.8 m s−2).
Choose one or more correct alternatives.
Joule is the unit of ______.
- force
- work
- power
- energy
Is the motion of moon around the earth in circular path an accelerated motion?
Is work done a scalar or a vector physical quantity?
Name the material commonly used for the manufacturing of solar cells.
How long should an electric motor, of power 2 H.P. operate, so as to pump 5 m3 of water from a depth of 15m. [Take g = 10 N kg−1]
________ is said to be done when a force is acting on it.
Work done by this force at any instant is ______.
