Question

3.
We prove that
(a) rolling friction is less than sliding friction
(b) sliding friction is less than rolling friction
(c) rolling friction is equal to sliding friction
(d) rolling friction is zero​

Answer 1

Answer:

in my way the answer is C

Answer 2

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Option A ➜ Rolling friction is less than sliding friction .

Explaination ➜ The force of friction depends on the area of contact between the two surfaces .

As the area of contact is less in the case of rolling than in the case of sliding , rolling friction is less than sliding friction.

What are 'sliding' and 'rolling' friction ?

Answer - The force of friction acting during the slide of one body over another is called sliding friction .

$\blue{hope \: it \: helps}$