Question

You need to move a 143-kg sofa to a different location in the room. It takes a force of 106 N to start it moving. What is the coefficient of static friction between the sofa and the carpet?

Answer 1

Answer:

Coefficient of static friction will be equal; to 0.075

Explanation:

We have given mass of the sofa m = 143 kg

Force needed to move the sofa F = 106 N

Acceleration due to gravity $g=9.8m/sec^2$

We have to fond the coefficient of static friction

Frictional force is given by $F=\mu mg$, here F is frictional force m is mass , g is acceleration due to gravity and $\mu$ is coefficient of static friction

So $106=\mu \times 143\times 9.8$

$\mu$ = 0.075

So coefficient of static friction will be equal; to 0.075