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At what height above the ground must a m...

At what height above the ground must a mass of `5 kg` be to have its `PE` equal in value to the `KE` possessed by it when it moves with

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`mgh = (1)/(2) mv^(2)`
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Potential energy of a body is the energy possessed by the body by virtue of its position. P.E. =mgh where the symbols have their usual meaning. Kinetic energy of a body is the energy possessed by the body by virtual of its velocity. K.E.=(1)/(2)m upsilon^(2) Energy can neither be created nor be destroyed. However energy can be changed from one form to other, such that energy appearing in one form is equal to the energy disappearing in the other form. With the help of the passage given above, choose the most appropriate alternative for each of the following question : The ratio of potential energy to kinetic energy at a height of 62.5 m above the ground is

Potential energy of a body is the energy possessed by the body by virtue of its position. P.E. =mgh where the symbols have their usual meaning. Kinetic energy of a body is the energy possessed by the body by virtual of its velocity. K.E.=(1)/(2)m upsilon^(2) Energy can neither be created nor be destroyed. However energy can be changed from one form to other, such that energy appearing in one form is equal to the energy disappearing in the other form. With the help of the passage given above, choose the most appropriate alternative for each of the following question : The body will attain this K.E. when it falls freely from a height of

NARAYNA-COLLISION-Level-I (H.W)
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