Deimos, a satellite of mars, has an average radius of 6300 m. if the gravitational force between deimos and a 3 kg rock at its surface is 2.5x10-2 n, what is the mass of deimos?

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15-01-2017
Physics

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Deimos, a satellite of mars, has an average radius of 6300 m. if the gravitational force between deimos and a 3 kg rock at its surface is 2.5x10-2 n, what is the mass of deimos?

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MissPhiladelphia MissPhiladelphia · Answer 1 · 2017-01-28T07:19:37+01:00

MissPhiladelphia MissPhiladelphia

28-01-2017

The gravitational force is a force that attracts any object with mass. We use the equation as follows:

F = Gm1m2 / r^2

where G is the gravitational constant that is equal to 6.67408 × 10-11 m3 kg-1 s-2, m is the mass and r is the radius.

2.5x10^-2= 6.67408 × 10^-11(3)m2 / 6300^2'

m2 = 4.96 x 10^15 kg

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