The French National Railroad holds the world’s speed record for passenger trains in regular service. A TGV (tres grand vitesse, or very great speed) train traveling at a speed of 284 km/h requires 1.1 km to come to an emergency stop. Find the braking acceleration for this train, assuming constant acceleration. Answer in units of m/s^2

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goformit100 · Answer

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anonymous · Answer

$$a=\frac{ v_0^2 }{ 2S }=\frac{\left(  \frac{ 284·10^3 }{ 3600 } \right)^2 }{ 2·1.1·10^3 }=2.82$$