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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 trying to push a wall.
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उत्तर
No.
संबंधित प्रश्न
When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall
1) Name the force exerted by the table top
2) What is the direction of the force?
Draw a simplified diagram of a lemon crusher, indicting of load and effort
A man having a box on his head, climbs up a slope and another man having an identical box walks the same distance on a levelled road.
Who does more work against the force of gravity and why?
A man spends 7.4 KJ energy in displacing a body by 74 m in the direction in which he applies force in 2.5 s. Calculate the force applied.
State the factors on which moment of force about a point depends.
What is the work done when the force on the object and the displacement of the object are perpendicular to each other?
State and define the unit of force in the S.I. system.
What is the work done by the gravitational force on the moon that revolves around the earth?
A coolie carrying a load on his head and moving on a frictionless horizontal platform does no work. Explain the reason why.
