physics

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a roller coaster, traveling with an initial speed of 15 meters per second, decelerates uniformly at -7.0 meters per second Squared to a full stop. Approximately how far does the roller coaster travel during its deceleration?

  • physics -

    The time it takes to stop is
    Vo/a = 15/7 = 2.143 s
    The average speed while stopping is
    Vo/2 = 7.5 m/s
    Multiply those two numbers to get the distance traveled while decelerating.

  • physics -

    16m

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