Question: A train is traveling south at 24 0 m s when the

A train is traveling south at 24.0 m/s when the brakes are applied. It slows down with a constant acceleration to a speed of 6.00 m/s in a time of 9.00 s.
(a) Draw a graph of vx versus t for a 12-s interval (starting 2 s before the brakes are applied and ending 1 s after the brakes are released). Let the x-axis point to the north.
(b) What is the acceleration of the train during the 9.00-s interval?
(c) How far does the train travel during the 9.00 s?

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