The graph shows a marble rolling down a curve from position 1 to position 5. In position 1 the potential energy of the marble is greatest.
What is mechanical energy?
Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.
The expression for total mechanical energy is as follows
ME= PE+KE
Where ME is the mechanical energy
PE is the total potential energy
KE is the total kinetic energy
As total mechanical energy is the sum of all the kinetic as well as potential energy stored in the system. At the highest point of position 1, the potential energy of the marble ball would be greatest.
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