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Physics Help (1 Viewer)

darkk_blu

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You use Kepler's constant, the information about Uranus is unnecessary.

R3/T2=GM/4pi2

You are given the radius, time and you already know the Universal Gravitational constant (6.67x10-11), sub in these values and rearrange the equation to get the mass. I hope this helps
 

Andy005

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I did that previously and ended up with the mass of the sun, the mass in Kepler's law refers to the central mass. I'm just unsure of how to calculate the mass of Pluto.
 

darkk_blu

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Sorry, can't help, spent good 10 minutes and can't wrap my head around this either.

Btw, we have the EXACT same subjects, good luck.
 

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