Where is the potential energy of the roller coaster the lowest?

(a)

(b)

(c)

(d)

D

Explanation:

The potential energy of an object depends on its mass, the acceleration of gravity and the height above the surface of the earth to which it is located.

Potential Energy (U)

where m is the mass, g is the acceleration of gravity and h is the height.

Since the mass is the same at all points and g is also the same, the point with the lowest potential energy should be the point that is at the lowest height, wich is point D.

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."