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Question

A satellite is orbiting the earth at a distance r. Variations of its kinetic energy, potential energy, and total energy, are shown in the figure. Of the three curves shown in the figure, Identify the type of mechanical energy they represent
1364799_acc7ce700b624ca5a05df328ab348ec0.png

A
1 Potential, 2 Kinetic, 3 Total
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B
1 Total, 2 Kinetic, 3 Potential
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C
1 Kinetic, 2 Total, 3 Potential
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D
1 Potential, 2 Total, 3 Kinetic
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Solution

The correct option is C 1 Kinetic, 2 Total, 3 Potential
The kinetic energy of the satellite
k=GMm2r

Potential energy of the satellite
U=GMmr

total energy of the satellite, E=GMm2r

In the figure,
Variation of K and r is shown by curve 1
Variation of U and r is shown by curve 3
Variation of E and r is shown by curve 2

Hence, option C is correct.

2086743_1364799_ans_905ba74da4bb478397785e66ac29e1a1.png

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