Question

A body of mass 100 g is made just to slide on a rough surface by applying a force of 0.8 N. Find the coefficient of friction

Answer 1

Given: A body of mass 100 g is made just to slide on a rough surface by applying a force of 0.8 N.

To find: The coefficient of friction.

Solution:

• Now we have given that mass is 100 gram and force applied is 0.8 N.

• Let μ be the coefficient of friction.

• As the friction force opposes the motion, so in equilibrium, the friction force is equal to the applying force.

                  f = μ x m x g

                  0.8 = μ x 0.1 x 10

                  μ = 0.8 / 0.1 x 10

                  μ = 0.8 / 1

                  μ = 0.8 N

Answer:

             So the coefficient of friction is 0.8 N.

Answer 2

Answer:

0.8

Explanation:

u = 0.8/0.1 ×10

u=0.8N