(a) State the properties of conservative forces. (b) A block dropped from a height compresses a spring and bounces back as shown in Figure 7. Explain the change of mechanical energy of the motion of the block from the perspective of work and energy. Ignore air resistance. Figure 7.

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(a) State the properties of conservative forces.
(b) A block dropped from a height compresses a spring and bounces back
as shown in Figure 7. Explain the change of mechanical energy of
the motion of the block from the perspective of work and energy.
Ignore air resistance.
Figure 7.
Transcribed Image Text:(a) State the properties of conservative forces. (b) A block dropped from a height compresses a spring and bounces back as shown in Figure 7. Explain the change of mechanical energy of the motion of the block from the perspective of work and energy. Ignore air resistance. Figure 7.
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