Question

roll a piece of marble on three different surface spread out on floor tout cellophane sheet carpet and newspaper and measure the distance covered by the marble observe the result and answer the following questions
how is frictional force created​

Answer 1

Answer:

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.

Explanation:

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