Question

You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 275 N in the positive x direction to try and move the 61 kg refrigerator. The coefficient of static friction is 0.58. (a) How much static frictional force does the floor exert on the refrigerator

Answer 1

f = 347.08 N

Step-by-step explanation:

The frictional force exerted by the floor on the refrigerator is given as follows:

`f = \mu R = \mu W`

where,

f = frictional force = ?

μ = coefficient of static friction = 0.58

W = Weight of refrigerator = mg

m = mass of refrigerator = 61 kg

g = acceleration due to gravity = 9.81 m/s²

Therefore,

`f = \mu mg\\f = (0.58)(61\ kg)(9.81\ m/s^2)\\`

f = 347.08 N