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

Coefficient of static friction will be equal; to 0.075

Step-by-step 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 * 143* 9.8`

`\mu` = 0.075

So coefficient of static friction will be equal; to 0.075