Question

Observe carefully the activity shown in fig(a) and (b) where a pencil cell is rolled down on a

wooden surface and then on a cloth sheet respectively.

Explain why and how- the pencil cell covers more distance on wooden surface of a table than

that on a cloth sheet?​

Answer 1

Answer:

In the wooden surface of a table the friction force is less and hills and valleys are also very less so the pencil covers more distance in table and in cloth sheet hills and valleys are more so the pencil covers less distance in cloth sheet.