PH-1324

Resultant force and F = ma

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

A lorry of mass

1500\,\text{kg}

accelerates at

2.0\,\text{m s}^{-2}

along a straight road. The total resistive force (air resistance and friction) on the lorry is

600\,\text{N}

opposite to its motion.

Using

F = ma

, what is the driving force produced by the engine?

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