Question

Find the gravitational force between a baseball (m = 0.3 kg) and a billiard ball (m = 0.4 kg) if the distance between their centers is 0.3 m.

Answer 1

Answer:

6.67×10^-11×4/3

Explanation:

we know that ,

F =G. M.m/r^2.

F=6.67×10^-11×0.3×0.4/(0.3)^2

F=6.67×10^-11×4/3

Answer 2

The gravitational force between a baseball and a billiard ball is $\mathbf{8.89\times 10^{-11} \ N}$

Explanation:

• Given data

        Mass of base ball (M) = 0.3 kg

        Mass of billiard ball (m) = 0.4 kg

        Distance between these two ball (r) = 0.3 m

        $\mathbf{\textrm{Universal gravitational constant}(G) =6.67\times 10^{-11} \ \frac{Nm^{2}}{kg^{2}}}$

• From formula of Newton's gravitational law

        $\mathbf{Force (F)=\frac{G\times M\times m}{r^{2}}}$

• On putting respective value in above equation, we get

        $\mathbf{Force (F)=\frac{6.67\times 10^{-11}\times 0.3\times 0.4}{0.3^{2}}}$

        $\mathbf{Force (F)=8.89\times 10^{-11} \ N}$