Question

Using Eqn. F=G(m1m2/r"2), show that G may be defined as the magnitude of force between two masses of 1 kg each separated by a distance of 1 m

Answer 1

Dear Student,

● Explanation -

According to Newton's law of gravitation,

F = G.m1.m2/r²

Rearranging,

G = F.r²/m1m2

When r = 1 m, m1 = m2 = 1 kg,

G = F × 1² / 1×1

G = 1 m^3.kg^−1.s^−2

Hence, we can define gravitational constant as the force of attraction exerted by two objects of mass 1 kg on each other kept at distance of 1 m apart.

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