Question

The force which is only attractive in nature is

Answer 1

Gravitational force is the answer.

Answer 2

There are various forces in nature. We have weak and strong nuclear forces, gravitational forces and electromagnetic forces.

All the forces except gravitational force may be repulsive or attractive.

The electrostatic force is repulsive for like charges and attractive for unlike charges. Strong nuclear force is attractive while weak nuclear force is repulsive to some extent. Similarly, magnetic forces may be repulsive or attractive depending on the nature of poles.

The gravitational force is the mutual forces between any two bodies of the universe. It is always attractive in nature. It depends on the masses of the two bodies and square of separation distance between them.

If m and m' are the masses of the two bodies and r is the separation distance between them, then gravitational force between them is-

                            $F=\ G\frac{mm'}{r^2}$

Here, G is called universal gravitational constant.

Hence, the correct answer to the question is gravitational force.