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For two bodies A and B of same material ...

For two bodies `A` and `B` of same material held on a horizontal plane force of limitting friction `F` varsus normal reaction `R` graphs are as shown in Which one has smoother surface in contact with the plane .
.

A

`A`

B

`B`

C

Both A and B

D

Neither A nor B

Text Solution

Verified by Experts

The correct Answer is:
b
As `mu = F//R =` slope of F -R curve which is greater for A therefore for body A force of frictionis smaller.
`:.` Surface of body B in contact with the plane must be smoother
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