Question

A ball is rolled on different surfaces, namely, wooden, glass, sand and newspaper. Arrange the surfaces based on the frictional force offered by each on the ball, in the increasing order of magnitude.
​

Answer 1

Explanation:

Friction is caused due to the irregularities in the surfaces in contact. Larger the irregularities, i.e., rougher the surface, more is the friction. The surface of sand is the roughest of all, followed by cloth, wood and marble floor. Thus, maximum friction will be observed in sand followed by cloth, wood and marble floor.

Answer 2

Answer:

glass, wood, newspaper, sand is the order