Question

A train slows down at a constant rate as it
rounds a sharp circular horizontal turn. Its
initial speed is not known. It takes 18.1 s to
slow down from 80 km/h to 33 km/h. The
radius of the curve is 163 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

Answer 1

As the train goes around the turn, what is
the sign of the tangential component of the
acceleration? Take the direction in which the
train is moving to be the positive direction.