Forces Unit Instruction Active Calculating Acceleration of a Train Until a train is a safe distance from the station

Question

Forces Unit
Instruction
Active
Calculating Acceleration of a Train
Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up
to 45 m/s. If it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train? (Round your answer to
the nearest whole number.)

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Adela 6 months 2021-07-15T09:25:32+00:00 2 Answers 3 views 0

Answers ( )

    0
    2021-07-15T09:27:11+00:00

    Answer:

    5 m/s (squared)

    Explanation:

    a= change in velocity/time

    since the train must travel at 5m/s

    then u= 5m/s, v=45m/s, t=8sec

    a=v-u/t

    a=45-5=40/8

    a=5m/s (squared).

    0
    2021-07-15T09:27:16+00:00

    Answer:

    correct edge 2020

    Explanation:

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