Question

Which of the following are not true for friction?
a) Friction can be increased by making the surface rough.
b) Friction can be increased by the use of lubricants
c) Friction can be decreased by polishing the surface.
d) Friction can be increased by increasing the weight of a body

Answer 1

Explanation:

a) Friction can be increased by making the surface rough.

b) Friction can be increased by the use of lubricants

c) Friction can be decreased by polishing the surface.

d) Friction can be increased by increasing the weight of a body

Answer 2

Answer:

B) friction can be increased by the use of lubricant

Explanation:

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