Question

While walking on the ground we apply force on 1 shoes 2 ground 3 gravitational 4
friction

Answer 1

While walking on the ground we apply force on friction.

Friction is the most essential thing which helps us to move forward.

The main friction is generated between the  shoes and the ground.

To stop a moving thing, force must act towards direction towards motion in the opposite direction.

For example, if you push your book to your desk, move the book. Push power force runs the book.

When the book revolves around the cloud, they are slow and stop moving. The force opposing the movement of an object is called friction.