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संबंधित प्रश्न
A box of weight 150 kgf has gravitational potential energy stored in it equal to 14700 J. Find the height of the box above the ground. (Take g = 9.8 N kg-1)
Explain degradation of energy by taking two examples of your daily life.
A boy tries to push a truck parked on the roadside. The truck does not move at all. Another boy pushes a bicycle. The bicycle moves through a certain distance. In which case was the work done more : on the trick or on the bicycle? Give a reason to support your answer.
Distinguish between work and power.
Fill in the boxe to show the corresponding energy transformation.
A body of mass 60 kg has the momentum 3000 kgm/s-1. Calculate: the speed of the body.
Calculate the work done when:
A 5 kg weight is lifted 10 m vertically. (g = 9.8 m/s2)
A force can cause an object to change its ______.
