Question

Walking of a person on the road is an example of

Options

• scalars

• unit vector

• resolution of vectors

• null vector

Answer 1

resolution of vectors

Explanation:

A person walking pushes the road backward with his feet by a force F at an angle e with the ground. As illustrated in the image, the road reacts by exerting an equal and opposite force R (= F) on the feet. R can be broken down into two rectangular components.

Vertical element R sin θ balances the man's weight, while R cos θ helps the man go ahead as long as it is greater than the force of friction.