Question

Methods of increasing friction are *


a. Making surfaces rough

b. Increasing mass of the moving object

c. Both a and b

d. None of the above​

Answer 1

Answer:

none of these

Explanation:

because we have to make the surface plain/slim

then the friction will increase ok hope you understood pls mark me as brainlist pls

Answer 2

Here your answer

Explanation:

Making surface rough is right then a is right one