(a)A light-rail commuter train accelerates at a rate of 1.45 m/s2. How long (in s) does...

(a)A light-rail commuter train accelerates at a rate of 1.45 m/s². How long (in s) 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 1.95 m/s². How long (in s) 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?

m/s²

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genius_generous answered 6 months ago

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