# How fast will an object with a mass of 4 kg accelerate if a force of 3 N is constantly applied to it?

Jun 4, 2018

$0.75 \frac{m}{{s}^{2}}$

#### Explanation:

Using Newton's first law of motion:

$F = m a$

The unit Newton is equivalent to $\left({\text{kg"*"m")/("s}}^{2}\right)$

We know the force and the mass, so we can solve for the acceleration (assuming no friction losses):

$3 = 4 a$

$\frac{3}{\textcolor{red}{4}} = \frac{\cancel{4} a}{\textcolor{red}{\cancel{4}}}$

color(green)(a=3/4m/s^2=0.75m/s^2