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Physics 13 Online
OpenStudy (anonymous):

An aircraft accelerates at 2.5 m/s.Its take-off speed is 60 m/s. a)what length of runway does it need to take-off ? b)how long does it take to reach its take-off speed?

OpenStudy (anonymous):

a train leaves a station from rest with a constant acceleration of 0.2m/s*.if it reaches its maximum speed after 2 minutes and maintains this speed for a further 4 minutes,when it slows down with an acceleration of -1.5m/s*. how far apart are the two stations.

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