1.What does the "Total Energy - Time" graph tell you about the toal energy of the...

1.What does the "Total Energy - Time" graph tell you about the toal energy of the ball as it falls?

2.What is one reason that some of the energy is lost as the ball falls?

Expert Solution

1.What does the "Total Energy - Time" graph tell you about the toal energy of the ball as it falls?

The total energy of a ball falling is equal to the sum of:
The kinetic energy related to motion, which increases as the ball descends.
The potential energy related to the position of the ball, which is decreasing because every time is closer to the ground.

however based on the principle of conservation of energy as we talk about "Total Energy" under ideal conditions the Total Energia vs time graph must be a straight horizontal line.

In real terms the chart shows how varied the total energy (kinetic plus potential) of the ball while going down to at different times.

2.What is one reason that some of the energy is lost as the ball falls?

in real conditions the friction generated by the air causes the ball to the fall to lose power with increasing speed. Remember that the friction force is a conservative force not because it produces energy losses. In addition to the impact with the ground part of the energy can be lost by deformation and heat (to the impact)

genius_generous answered 1 year ago

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