A 50kg refrigerator is being moved across a kitchen floor with an applied force of 300N. There is a known friction force of 50N acting against the motion of the
refrigerator.

What was the acceleration of the refrigerator? [ Select ]
m/s2

5m/s²

Explanation:

Given parameters:

Mass of refrigerator  = 50kg

Applied force  = 300N

Frictional force  = 50N

Unknown:

Acceleration of the refrigerator  = ?

Solution:

To solve this problem:

  Net force = m x a

  m is the mass

   a is the acceleration

 Net force  = Applied force  - Frictional force

             300  - 50  = 50 x a

                   250  = 50 x a

                    a  = 5m/s²