Question

what is the effect on coefficient of static friction when side length of acube 5 cm is doubled to original?

Accepted Answer

The coefficient of friction depends on the materials used, in may
depends on temperature, on geometric properties of the interface
between the materials. But coefficient of friction is independent of
the area of contact. (According to the Amontons second law of
friction, the force of friction is independent of the apparent area of
contact).

Hence coefficient of static friction stays the same, when side length
of a cube 5 cm is doubled to original.

Question #25726

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