Question

A 367.5 N force is applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. Given that the frictional force is 100N. What is the mass of the chair?

Answer 1

Mass = 63.7 kg

Step-by-step explanation:

Given:

F = 367.5 N - force

a = 4.2 m/s² - acceleration

F₁ = 100 N - frictional force

___________

m - ? - mass

2 Newton's law:

m·a = F - F₁

Mass:

m = (F - F₁) / a

m = (367.5 - 100) / 4.2 ≈ 63.7 kg