A body of mass 2 kg is thrown up vertically with a kinetic energy of 490 J. If the acceleration due to gravity is \[9.8\text{ }m\text{ }{{s}^{-2}}\], the height at which the kinetic energy of the body becomes half of the original value is

A body of mass 2 kg is thrown up vertically with a kinetic energy of 4

1.	A body of mass 2 kg is thrown up vertically with a kinetic energy of 490 J. If the acceleration due to gravity is \[9.8\text{ }m\text{ }{{s}^{-2}}\], the height at which the kinetic energy of the body becomes half of the original value is
A.	50 m
B.	25 m
C.	12.5 m
D.	10 m.
Answer» D. 10 m.

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A body of mass 2 kg is thrown up vertically with a kinetic energy of 490 J. If the acceleration due to gravity is \[9.8\text{ }m\text{ }{{s}^{-2}}\], the height at which the kinetic energy of the body becomes half of the original value is

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