Question

Two bodies having same mass 2kg each have different surface are as 50m and
100m in contact with a horizontal plane. If the coefficient of friction is 0.2. The ratio of forces of
friction on them while they are in motion is.
a) 1:1
b) 1:2
c) 2:1
d) 3:2​

Answer 1

Answer:

1.1

Explanation:

Correct option is

A

1 : 1

Force of friction is same in both cases. As frictional force is independent of the surface in contact with ground and depends only on mass of the body.

∴ Force is same for all surfaces.

∴ Ratio of forces of friction is 1 : 1.

Answer 2

Answer:

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