Meenu observed that as a stone of mass 1kg falls freely from a height 1m, its potential energy gets converted into kinetic energy. Therefore, its potential energy decreases and kinetic energy increases. As the stone touches the ground, all its potential energy is converted to the kinetic energy.
Differentiate between kinetic energy and potential energy with relevant formulas and examples.
Can any object have mechanical energy even if its momentum is zero? Explain.
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