Question

An object accelerates 8.2m/s² when a force of 20.1N is applied to it . What is the mass of the object?

Answer 1

Explanations & Calculations

• Assuming the given force to be the NET force applied on the object, Newton's second law can be applied to this situation to calculate the mass of the object.

$\qquad\qquad \begin{aligned} \small \Sigma F&=\small ma\\ \small 20.1\,N&=\small m\times8.2\,ms^{-2}\\ \small m&=\small \frac{20.1\,kgms^{-2}}{8.2\,ms^{-2}}\cdots\cdots[N=kgms^{-2}]\\ &=\small \bold{2.45\,kg} \end{aligned}$