# physics

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?

At the moment the train’s speed is 55 km/h,
what is the magnitude of the total accelera-
tion?

1. 👍 0
2. 👎 0
3. 👁 327

1. 👍 0
2. 👎 1

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