Question

EXAMPLE 3.3: An object of mass 200 kg is placed at a distance of 2 m from another object of mass
800 kg. If gravitational force between the two objects is 2.7 x 10-6 N, calculate the value of gravitational
constant G.
Please Explain the highlited part in depth.​

Answer 1

Answer:

Answer.6.75×10-11×Nm2×kg-2

First we put the formula,

F=GMm/R2

Now,FR2=GMm

FR2÷Mm=G

Now put the values,2.7×10-6N×2×2

200×800 kg2

Now,27×10-6 N×4/8×2×100×100×10

108×10-6Nm/16×10_5

108×10_11Nm/16Kg2

6.75×10_11 Nm kg_2