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प्रश्न
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संबंधित प्रश्न
A body is moved in a direction opposite to the direction of force acting on it. State whether the work is done by the force or work is done against the force
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
Give an example when work done by the force of gravity acting on a body is zero even though the body gets displaced from its initial position.
What is meant by a rotatory motion? Give one example.
Work is a scalar quantity because it is a measure of transfer of energy without indicating any direction
State the condition when the work done by the force is positive
Relate 1 KWh (kilowatt hour) with joule.
Derive a relation between the S.I. and C.G.S. unit of force.
Calculate the work done when:
A car is moved on a rough road through 30 m against a frictional resistance of 75 N.
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A person walks on a levelled road.
