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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
- A book falls freely from the table top. Is work done by some force dur...
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- A boy sitting in a moving car possesses kinetic energy.
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- If momentum of a body is doubled, the kinetic energy becomes times.
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- Is energy a scalar or a vector quantity? Why?
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- What are the various forms of energy? Give some examples of each.
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- Define Kinetic energy. Give one example.
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- A boy of mass 18 kg is running with a speed of 12 km/h. Find the kinet...
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- Given that the kinetic energy of an object is 100 J. If the mass of ob...
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- A stationary football is kicked by a player such that it attains a spe...
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- Find the work done in in reasing the speed of car from 18 kmh^-1 to 36...
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- What is the force required to lift a book of mass m? This force is req...
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- What happens to the potential energy if the height of a body is double...
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- Give two example of bodies possessing gravitational P.E.
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- Give two example of bodies possessing elastic P.E.
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- Define potential energy. Derive an expression for it. On what factors ...
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- A body of mass 6 kg is kept at a height of 5 m from the surface of ear...
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- The body of mass 6 kg is taken from a height of 5 m to a height of 10 ...
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- An object of mass 12 kg is at a certain height above the ground. If th...
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- A boy of mass 40 kg climbs vertically upwards on a coconut tree to a h...
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- A boy of mass 40 kg climbs vertically upwards on a coconut tree to a h...
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