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## Homework Statement

A train slows down as it rounds a sharp horizontal turn slowing from 90.0km/h to 50.0km/h in the 15.0s that it takes to round the bend. The radius of the curve is 150m. Compute the acceleration at the moment the train reaches 50.0km/her. Assume it continues to slow down at this rate.

## Homework Equations

V

_{f}= V

_{i}+ a*t

A

_{c}= V

^{2}/ r

## The Attempt at a Solution

I am totally confused and have to hand in this problem tomorrow and I don't have the text book to reference.