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C.A body is situated at the height of 20 m from the ground. The potential energy ofbody is 100 J. Calculate the mass of body. (Given, g = 10 m/sec) |
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Answer» _______________________________ GIVEN : Potential energy = 100 J g = 10m/s² Height (h) = 20m To find : Mass = ? Solution : We KNOW that, Potential energy = mass × acceleration × height PE = mgh Now put the given values : 100 J = m × 10m/s² × 20m 100 J = m × 200 200m = 100 m = 100/200 m = 1/2 = 0.5 kilogram. [ REQUIRED answer ] |
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