Question

The mass of sun is `2xx10^(30)` kg and mass of earth is `6xx10^(24)` kg. if the distance between the centers of sun and earth is `1.5xx10^(8)` km, calculate the force of gravitation between them.

Answer 1

Correct Answer - `3.56 xx 10^(22)N`
Here, `m_(1)=2xx10^(30)kg, m_(2)=6xx10^(24) kg, r=1.5xx10^(8) km=1.5xx10^(11)m, F=?,G=6.67xx10^(11) Nm^(2)//kg^(2)`
Thus, `F=(Gm_(1)m_(2))/r^(2)=(6.67xx10^(11)(2xx10^(30))(6xx10^(24)))/(1.5xx10^(11))^(2)=3.56xx10^(22)N`