Question

An object of mass 30 kg is raised to a height of 10 m above the ground calculate its potential energy.what is its potential energy when the object is 7 m above tthegroun​

Answer 1

$potential \: energy \: when \: it \: is \: 10m \: above \: ground \\ = mgh \\ = 30 \times 9.8 \times 10 \\ = 2940 \: joule \\ \\ potential \: energy \: when \: it \: is \: 7m \: above \: ground \\ = mgh \\ = 30 \times 9.8 \times 7 \\ = 2058 \: joule$

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