March 30, 2017

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A train slows down at a constant rate as it
rounds a sharp circular horizontal turn. Its
initial speed is not known. It takes 19.8 s to
slow down from 81 km/h to 37 km/h. The
radius of the curve is 164 m.
As the train goes around the turn, what is
the magnitude of the tangential component of
the acceleration?
Answer in units of m/s2.

At the moment the train’s speed is 55 km/h,
what is the magnitude of the total accelera-
Answer in units of m/s2.

  • physics - ,

    Please show evidence of your own work. I am not doing your homework for you

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