Question

Calculate gravitational force between a 10 kg ball and 20 kg ball placed at a seperation of 5 meter

Answer 1

F=-GMm/r×r

-$6.67 \times {10}^{ - 11} \times 10 \times 20 \div \ {5}^{2}$

-$6.67 \times {10}^{ - 11} \times 8$
-$53.36 \times {10}^{ - 11} newton$