Question

At the top of the hill, the
ball has 100 J of potential energy. Explain what happens
to Mechanical Energy, Kinetic Energy and Potential
Energy as the ball rolls down and reaches the bottom.

Answer 1

Answer:

The answer to your question is below

Explanation:

To explain what happens with the ball we must remember the Law of Conservation of Energy.

This law states that the energy can be neither created nor destroyed only converted from one form of energy to another.

Then,

At the top of the hill, the potential energy is maximum and the kinetic energy equals to zero.

When the ball starts to roll down the potential energy will be lower and the kinetic energy will have a low value.

At the middle of the hill, both energies have the same values.

At the end of the hill, the potential energy will be equal to zero and the kinetic energy will be maximum.

Answer 2

According to this law, energy cannot be generated or annihilated; it can only be transformed from one type of energy to another.

• The gravitational potential is highest at the summit of the slope, whereas the kinetic energy is negative.
• The potential energy of the ball will be reduced when it begins to roll down, and the velocity will be low.
• Both energy have had the same value at the center of the slope.
• The gravitational potential will be minimal and the velocity will be highest at the top of the slope.

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