3. A box weighs 300 N. A force of 20 N Will slide it across a floor at a constant speed. What is the mass of the box? What is the acceleration of the box?

The mass of the box, m = 30.61 Kg

The acceleration of the box, a = 0.65 m/s²

Explanation:

Given that,

The weight of the box, w = 300 N

The sliding force acting on the box, F = 20

Since the weight of a body is equal to the product of mass and displacement. The mass of the box is given by the relation

m = w/g

Substituting the given values in the above equation

m = 300 / 9.8

= 30.81 Kg

Hence, the weight of the box is, w = 30.81 Kg

Since the sliding force acting on the box is 20 N

Therefore, acceleration

a = F / m

= 20 / 0.81

= 0.65 m/s²

Hence, the acceleration acting on the box, a = 0.65 m/s²