Q: The gravitational force (F) on mass M due to another mass m at a distance x is given by (vector x⃗ is from mass M to mass m and unit vector x̂ is the corresponding unit vector)
(a)F = G M m / x³ x⃗
(b)F = – G M m / x³ x⃗
(c)F = – G M m / x³ x̂
(d)F = G M m / x³ x̂
Correct Answer: (a)
The correct answer is (c) 'F = – G M m / x³ x̂'. This question from the Science & Technology domain tests knowledge of Physics.