Question

ii) Friction is caused by the
contact
on the two surfaces in​

Answer 1

Answer:

Friction is caused by the irregularities on the two surfaces in contact. Irregularities on the two surfaces lock into one another. In order to move any surface, a force needs to be applied to overcome interlocking. Rough surfaces have large a number of irregularities.

Explanation:

Friction is caused by the interlocking of irregularities in the surface of two objects which are in contact with each other. To move one object over the other ,we have to apply a force to overcome interlocking of the irregularities in their surfaces.

Answer 2

Answer:

Friction is caused by the irregularities on the two surfaces in contact.