Question

what magnitude of net force is required to give a 115 kg refrigerator an acceleration of magnitude 1.40m/s2 if there is 50N of friction between the fridge and the floor?

Answer 1

Answer: 211 N

Explanation:

To find the magnitude of the net force required, we can use Newton's second law of motion:

$F_{net} =ma$, where:

• $F_{net}$ is the net force
• m is the mass of the object
• a is the acceleration of the object

In this case, we need to account for the friction force. The net force must be equal to both the force required to accelerate the refrigerator and the friction force opposing its motion. The friction force is given as 50N. Substituting the given values into the formula:

$F_{net} =ma$ + 50

$F_{net} =(115)(1.4)+50$

$F_{net}$ = 211 N

The magnitude of the net force required is 211 N.

Learn more about Newton's second law of motion here: https://brainly.com/question/25545050