A comet collided with Jupiter, gravity broke the comet in pieces, and then fragm

Question

A comet collided with Jupiter, gravity broke the comet in pieces, and then fragments plunged in Jupiter’s atmosphere for a weak. Consider one of the pieces of the comet as it streaked through the atmosphere of Jupiter on its way to the surface. Which is correct?

a comet collied with Jupiter, gravity broke the conet in pieces, then fragments plunged in jupiters atmosphere for a week. Consider one of the pieces of the conet as, it through the atmosphere of Jupiter on its way to the surface. Which is correct; Jupiter atmosphere did negative work on the fragment Jupiter atmosphere did positive work on the fragment energy was conserved, so atmosphere did no work

Explanation / Answer

a) Jupiter atmosphere did negative work on th egragment.

Because, When the comet piece moves towards the jupiter surface air acts in the opposite direction.

so, Workdone, W = F.d

= F*d*cos(180)

= -F*d

workdone by atmosphere is negative.

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