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when a car climbs a hill, it has only potential energy
True or false ​


Sagot :

Answer:

False.

A car climbing a hill has both potential and kinetic energy,

Explanation:

Potential energy and Kinetic energy are two forms of mechanical energy.

Potential energy is the stored energy that a body posseses due to its state or position. For example, a piece of stone on a lying at a certain point above the ground has potential energy which can be used to do work on the ground when it is released from its height above the ground.

Kinetic energy is energy that a body posseses due to its motion. For a example, a bullet fired from a gun has kinetic energy due to its high velocity and can be used to do work like shattering windows and killing animals.

In some instances, a body will have a total mechanical energy which is equal to a combination of both potential and kinetic energy. For example, a car climbing a hill has kinetic energy due to its motion. It also gains in potential energy as its height above the ground continues to increase as it climbs the hill. The total kinetic energy of the car is the sum of its kinetic as well as potential energy.