a toy car needs a sorce of energy to move.how could you give gravitational potential energy to a toy car so that it will move when you let it go

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Solution

When you place and hold the toy car on a sloping surface gravitational potential energy is stored in the car due to height from the plane surface. And when you release the toy car it will move downwards due to the gravitational potential energy stored in the car is converdet to mechanical energy

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