Write an expression for the gravitational force of attraction between two bodies of masses `m_1` and `m_2` separated by a distance r .

Calculate the gravitational force of attraction between two bodies of masses 40 kg and 80 kg separated by a distance 15 m. Take G= 6.7 xx 10^(-11) N m^2 kg^(-2)

Assertion : The centres of two cubes of masses m_(1) and m_(2) are separated by a distance r. The gravitational force between these two cubes will be (Gm_(1)m_(2))/(r^(2)) Reason : According to Newton's law of gravitation, gravitational force between two point masses m_(1) and m_(2) separated by a distance r is (Gm_(1)m_(2))/(r^(2)) .

The gravitational force between two bodies is :

Find the gravitational potential at a point where the gravitational field intensity is zero due to two particles of masses m_(1)=1kg and m_(2)=4kg separated through a distance l=3m ?

What is the force of attraction between two masses each of 1 kg kept at a separation of 1 m?

Calculate the position of centre of mass of a system consisting of two particles of masses m_1 and m_2 separated by a distance L apar, from m_1?

The force of attractions between two charges 8muC and -4muC is 0.2 N. Find the distance of separation.

The gravitational force of attraction between two bodies at a distance X is 20 N. What will be the force of attraction between them if the distance between them is made 2X?

State whether the gravitational force between two masses is attractive or repulsive ?

Supposing Newton's law of gravitation for gravitation forces F_(1) and F_(2) between two masses m_(1) and m_(2) at positions r_(1) and r_(2) read where M_(0) is a constant of dimension of mass, r_(12) = r_(1) - r_(2) and n is a number. In such a case,