PH-1547

Resultant force and F = ma

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

A 0.80 kg trolley is pulled along a horizontal track by a string. The tension in the string is 3.2 N and friction is 1.6 N. What is the acceleration of the trolley?

$0.50\,\text{m/s}^2$
$1.0\,\text{m/s}^2$
$2.0\,\text{m/s}^2$
$4.0\,\text{m/s}^2$

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