Two students standing apart in a classroom have a gravitational force of attraction between them of 3.20 x 10-8 N. If one student has a mass of 50.0 kg and the other has a mass of 60.0 kg, what is the distance between the students?

Question

Physics

Cristopher

28 September, 17:45

Two students standing apart in a classroom have a gravitational force of attraction between them of 3.20 x 10-8 N. If one student has a mass of 50.0 kg and the other has a mass of 60.0 kg, what is the distance between the students?

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Answers (1)

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Eden Flynn · Answer 1

Using:

F = GMm/r²

r = √ (GMm/F)

F = 3.2*10⁻⁸ N, M = 60 kg, m = 50 kg, G = 6.673*10⁻¹¹ Nm²kg⁻²

r = √ (GMm/F)

r = √ (6.673*10⁻¹¹*60*50 / 3.2*10⁻⁸) Use a calculator.

r ≈ 2.5011 m

The distance between the students is ≈ 2.5 m.