PH-1671

Acceleration

Physics · Secondary 4 · Hard · Acceleration

A car of mass 1200 kg is travelling at 20 m/s when the brakes are applied and it comes to rest in 5.0 s. Assuming uniform deceleration, what is the braking force on the car?

$4.8\times10^3\,\text{N}$
$2.4\times10^3\,\text{N}$
$6.0\times10^3\,\text{N}$
$9.6\times10^3\,\text{N}$

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