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To what height should a box of mass 150kg be lifted, so that its potential energy may become 7350 joules?

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To what height should a box of mass 150kg be lifted, so that its potential energy may become 7350 joules?

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Mas of the box, m = 150kg 

PE = 7350 J 

Acceleration due to gravity, g = 9.8 m/s2 

PE = mgh 

h = PE/mg 

h = 5m

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