Why all objects don't attract each other despite having gravitational force?
Gravitational force is a fundamental force of nature that exists between any two objects having mass. It is an attractive force that pulls two objects towards each other. However, not all objects attract each other with the same force. There are several reasons for this.
1. Mass
The force of gravity between two objects depends on their mass. The greater the mass of an object, the greater is its gravitational force. For example, the earth attracts us towards it with a greater force than a small object like a pen because of its greater mass.
2. Distance
Gravity also depends on the distance between two objects. The farther apart two objects are, the weaker is their gravitational force. This is why we do not feel the gravitational attraction of objects that are far away from us, like stars and planets in distant galaxies.
3. Gravitational Constant
Gravitational force also depends on the gravitational constant, which is a fundamental constant of nature. The value of this constant determines the strength of the gravitational force between two objects. It is a very small number, and this is why we do not feel the gravitational attraction of objects that are close to us but have a very small mass.
4. Other Forces
Objects can also be affected by other forces, which can counteract or even overcome the gravitational force. For example, if you throw a ball upwards, its gravitational force will try to pull it back towards the earth, but the force of your throw is stronger, so the ball continues to rise.
Conclusion
Therefore, all objects do attract each other due to the force of gravity, but the strength of this force depends on the mass of the objects, the distance between them, and the value of the gravitational constant. Other forces can also counteract or overcome the gravitational force, which is why we do not see all objects attracting each other all the time.