Answer to Question #162304 in Physics for Karri

Question

Sylvia pushes a box with a force of 400N. If the box moves with an acceleration of 1.2 m/s2, whats is its mass

Answer 1

$$F=ma,$$ $$m=\dfrac{F}{a}=\dfrac{400\ N}{1.2\ \dfrac{m}{s^2}}=333.3\ kg.$$