PH-1522

Resultant force and F = ma

Physics · Secondary 4 · Medium · Resultant force and F = ma

A 2.0 kg block is pulled horizontally along a rough surface by a force of 14 N. The frictional force opposing the motion is 6.0 N.

What is the acceleration of the block?

$4.0\,\text{m s}^{-2}$
$2.0\,\text{m s}^{-2}$
$7.0\,\text{m s}^{-2}$
$10\,\text{m s}^{-2}$

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