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Experiment: The force required to stretch an elastic is measured, along with the displacement of the...

Experiment: The force required to stretch an elastic is measured, along with the displacement of the elastic. The elastic is then used to launch a cart on a low friction track and the motion of the cart is analyzed. The experiment is repeated for a total of 5 trials.

1. If I have to draw the graph of Ek of cart as a function of energy transferred to elastic, what is function of energy transferred to elastic? What does that mean? Is it elastic potential energy? In other words, what do I need to put for the manipulated variable of the graph? I know that kinetic energy is responding variable..

2. What does the m(slope) of the graph showing kinetic energy as a function of energy transferred to the elastic represent?

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Answer #1

1.

the energy transferred to elastic is elastic potential energy and given by

E = 1/2 Fx

F is force and x displacement

2.

slope will show efficiency of conversion

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