How soon will they collide

Reference no: EM13193837

A subway train is traveling at 82 km/h when it approaches a slower train 45 m ahead traveling in the same direction at 25 km/h. If the faster train begins decelerating at 2.1 {rm{ m/s}}^2 while the slower train continues at constant speed, how soon will they collide?

Reference no: EM13193837

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