A satellite gets unstable in its orbit and starts to fall towards Earth and also starts heating. If the satellite had a potential energy of 1000 J initially and by the time it reaches Earth's surface, it attains a kinetic energy of 500 J. Then, how much energy is spent in the form of heat?

1000 J

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5000 J

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500 J

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100 J

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Solution

The correct option is C
500 J

Given, initial potential energy = 1000 J
Final kinetic energy = 500 J
Here, potential energy is converted to kinetic energy and heat.
So, potential energy = Kinetic energy + Heat
$\to$ 1000 = 500 + Heat
$∴$ Heat = 500 J

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A satellite gets unstable in its orbit and starts to fall towards Earth and also starts heating. If the satellite had a potential energy of 1000 J initially and by the time it reaches Earth's surface, it attains a kinetic energy of 500 J. Then, how much energy is spent in the form of heat?

The correct option is C 500 J Given, initial potential energy = 1000 J Final kinetic energy = 500 J Here, potential energy is converted to kinetic energy and heat. So, potential energy = Kinetic energy + Heat → 1000 = 500 + Heat ∴ Heat = 500 J

The correct option is C
500 J

Given, initial potential energy = 1000 J
Final kinetic energy = 500 J
Here, potential energy is converted to kinetic energy and heat.
So, potential energy = Kinetic energy + Heat
$\to$ 1000 = 500 + Heat
$∴$ Heat = 500 J