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प्रश्न
When you move upstairs, do you perform some work?
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उत्तर
Yes, we perform work against gravity.
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संबंधित प्रश्न
An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?
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State the conditions of equilibrium for a rigid body.
Is the motion of moon around the earth in circular path an accelerated motion?
Write an expression for the work done against gravity.
A boy pulls a box up to 10 m with a force of 5 kgf. Calculate the work done by him.
How fast should a boy weighting 30 kg run so that his kinetic energy is 375 joule?
How much energy is gained by a box of mass 20 kg when a man, runs carrying the box with a speed of 3 m/s-1 to catch the bus?
State larger units of power.
