Write an expression for the potential energy of a body of mass m placed at a height h above the earth’s surface. State the assumptions made, if any.

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Write an expression for the potential energy of a body of mass m placed at a height h above the earth’s surface. State the assumptions made, if any.

Class 10 | ICSE | Physics | Selina | Work Energy

Write an expression for the potential energy of a body of mass m placed at a height h above the earth’s surface. State the assumptions made, if any.

Solutions:

W = force of gravity (mg) displacement (h) = mgh The work done on the body while elevating it to a height h is W = force of gravity (mg) displacement (h) = mgh

When the body is at a height h, this work is stored in the form of gravitational potential energy.

U = mgh = gravitational potential energy

i

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