The gravitational potential engery of an object is always measured relative to the

the gravitational potential is always relative to the height of the object

PE = mgh where PE is the potential energy, m is

the mass of the object, H is the height of the object and g is the acceleration

due to gravity.

The gravitational potential energy of an object is always measured relative to the height of the object

The potential energy of an object is the product of its mass, height and the gravitational acceleration. If one of them increases or decreases the whole magnitude differs. If an object is thrown upwards, it gains height and loses speed, thus increasing its gravitational potential energy and decreasing its kinetic energy.

car a and b are moving in opposite directions

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