Exam-style question
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What is the formula for calculating the gravitational force between two masses?.
- A.F = m1 + m2
- B.F = G(m1m2)/r^2
- C.F = m1m2/r
- D.F = G(m1 - m2)/r^2
Model answer
What a good answer should say
- F = G(m1m2)/r^2
Explanation
Why this works
Newton's law of gravitation states that the gravitational force F between two masses m1 and m2 is given by F = G(m1m2)/r^2, where G is the gravitational constant and r is the distance between the centers of the two masses.
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