PH-1545

Resultant force and F = ma

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

A 0.050 kg ball is thrown horizontally and experiences an air resistance force of 0.20 N opposite to its motion. What is the magnitude of its horizontal acceleration?

$0.25\,\text{m/s}^2$
$1.0\,\text{m/s}^2$
$4.0\,\text{m/s}^2$
$20\,\text{m/s}^2$

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