PH-1452

Resultant force and F = ma

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

A 0.20 kg ball is thrown horizontally and experiences a constant air resistance of 0.40 N opposite to its motion. What is the horizontal acceleration of the ball?

$0.20\,\text{m s}^{-2}$
$0.80\,\text{m s}^{-2}$
$2.0\,\text{m s}^{-2}$
$4.0\,\text{m s}^{-2}$

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