PH-298

Resultant force and F = ma

Physics · Secondary 3 · Medium · Resultant force and F = ma

A 5.0 kg box is pulled horizontally with a constant force of 40 N. The frictional force opposing the motion is 15 N. What is the acceleration of the box?

$1.0\,\text{m/s}^2$
$2.0\,\text{m/s}^2$
$5.0\,\text{m/s}^2$
$8.0\,\text{m/s}^2$

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