PH-143

Resultant force and F = ma

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

A 4.0 kg box is pulled along a horizontal floor by a horizontal force of 26 N. The frictional force opposing the motion is 10 N. What is the acceleration of the box?

$4.0\,\text{m/s}^2$
$6.5\,\text{m/s}^2$
$2.5\,\text{m/s}^2$
$9.0\,\text{m/s}^2$

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