PH-1434

Resultant force and F = ma

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

A car of mass

900\,\text{kg}

is travelling at

20\,\text{m s}^{-1}

. The driver applies the brakes and the car comes to rest in

5.0\,\text{s}

. Assume the deceleration is uniform.

What is the average braking force on the car?

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