Using the data collected from the motion detector, the group of students is able to calculate both initial and final velocities. The initial velocity is measured when the mass is released, and the final velocity is measured just as the mass hits the floor. Using these velocities, they calculate the initial and final kinetic energies. They also calculate the initial gravitational potential energy by measuring the initial height when the mass is released. The final gravitational potential energy is taken to be zero at the floor. When they compare the final (kinetic) energy value to the initial energy value (that is, the sum of the initial kinetic and gravitational potential energies), which of the values is greater... ... if the assumptions presented in the previous problem are true?

the initial velocities and the final velocities were being able to be calculated,
The initial kinetic energy and the final kinetic energy were also determined. and:
the gravitational potential energy.

The initial kinetic energy K.E can be computed as;

[tex]\mathbf{=\dfrac{1}{2} mv_1^2}[/tex]

The final kinetic energy K.E can be computed as;

[tex]\mathbf{=\dfrac{1}{2} mv_2^2}[/tex]

The gravitational potential energy = mgh

Since the assumption is not clear, we will regard that no air resistance takes place in this question. As such no energy is used up by work.

Then;

Final energy = Initial energy

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