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प्रश्न
In the following case write yes, if the work is being done and no if no work is being done.
A man moving on the rough ground.
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उत्तर
Yes.
संबंधित प्रश्न
A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in 4 minutes and a girl weighing 30 kgf does the same in 3 minutes. Compare:
- The work done by them.
- The power developed by them.
Draw a simplified diagram of a lemon crusher, indicting of load and effort
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.)
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
Is it possible that no transfer of energy may take place even when a force is applied to a body?
State the principle of moments.
Work done by a force is equal to the product of ....... and ....
How is 1 kgf related to the SI unit of force?
Justify the statement. “Power can be expressed as the product of force and velocity.”
For the following scenario, state whether the work done by gravity is positive, negative, or zero.
A car in neutral gear is coming down the slope.
