Question

what is the force required to stop a 8kg object accelerating at 2 m/s^2?
f = ma
4 newton
2 newtons
8 newtons
16 newtons

Explanation:

Step1: Identify given values

$m = 8\text{kg}$, $a=2\text{m/s}^2$

Step2: Apply force - mass - acceleration formula

$F = ma=8\times2$
$F = 16\text{N}$

Answer:

16 Newtons