The distance of Pluto from sun is 40 times than the distance of earth from sun. If the mass of earth and Pluto is same, then find the ratio of gravitational force of sun on earth and Pluto.

The distance of Pluto from sun is 40 times than the distance of earth

1.	The distance of Pluto from sun is 40 times than the distance of earth from sun. If the mass of earth and Pluto is same, then find the ratio of gravitational force of sun on earth and Pluto.
Answer» SOLUTION :`IMPLIES F_(es) prop (m_em_s)/((r_(es))^2)` `F_(ps)prop(m_"p"m_s)/((r_(ps))^2)` `(F_(es))/(F_(ps))=(r_(ps))^2/((r_(es))^2) =((40x^(2))/x)^2` `= 1600 : 1 `