Question

drawn from the above activities can be The friction depends upon the irregularities (roughness) of t It is more for rough surfaces as compared to smooth surfa The friction is directly proportional to the mass of the s mass, larger is the friction. No surface can be called perfe Check Pointi- Write True or False. 1. Friction opposes the movement of an object. 2. Only rough surfaces have irregularities. 3. Sliding friction keeps an object moving. 4. Friction depends on the nature of two surfaces in contact.​

Answer 1

Answer:

So the force of friction is greater if a rough surface is involved. We see that the friction is caused by the interlocking of irregularities in the two surfaces. It is obvious that the force of friction will increase if the two surfaces are pressed harder.