Question

If the normal reaction is doubled, the frictional force will be A) Doubled B) Halved C) Not changed D) Tripled​

Answer 1

Answer:

Because the nature of the two surfaces in contact has not changed, doubling the normal force doubles the amount of friction, but the coefficient of friction remains the same.

Explanation:

So the correct answer will be A) Doubled.

Answer 2

Answer:

sorry i know only this one