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(a) a light-rail commuter train accelerates at a rate of 1.35 m/s2 . how long does it take to reach its top speed of 80.0 km/h, starting from rest?
(b) the same train ordinarily decelerates at a rate of 1.65 m/s2 . how long does it take to come to a stop from its top speed?
(c) in emergencies the train can decelerate more rapidly, coming to rest from 80.0 km/h in 8.30 s. what is its emergency deceleration in m/s2 ?
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(a) a light-rail commuter train accelerates at a rate of 1.35 m/s2 . how long does it take to reach...
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