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Two objects having equal masses are moving with uniform velocities of 2 m/s and 6 m/s respectively. Calculate the ratio of their kinetic energies.

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LAKHMIR SINGH & MANJIT KAUR-WORK AND ENERGY-Exercise
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  9. A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate t...

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  10. What is the work done by a constant force ? When is it positive, negat...

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  11. To what height should a box of mass 150 kg be lifted, so that its pote...

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