Question

There are mainly two types of forces which are being stated in the free body diagram of the belts, they are generally the resultant forces which are being acted over the body over which the belt is rolling. Which are they?

(a) Normal and Frictional

(b) Normal and Vertical

(c) Vertical and Frictional

(d) Normal and Fractional

This question was addressed to me during a job interview.

My question is based upon Frictional Forces on Flat Belts topic in division Friction of Engineering Mechanics

Answer 1

Correct option is (a) Normal and Frictional

For explanation I would say: The net forces acting on the body is shown with the help of the resultant forces. There are two types, first the frictional and the second is normal. This is because the resultant forces have the sum of all the forces which are acting in the direction which is same.