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physics

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The loaded car of a roller coaster has mass M = 320 kg. It goes over the hig
a speed v of 21.4 m/s. The radius of curvature R of the hill is 62.3m
(a) What is the force (N) that the track must exert on the car? (positive is
(b) What must be the force (N) that the car exerts on a 61 kg passenger?

  • physics -

    a. what is mg-mv^2/r ?

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