Amtrak's 20th-Century Limited is on route from Chicago to New York at 120km/h when the engineer spots a cow on the track. The train brakes to a halt in 1.3min, stopping just in front of the cow.

a) What is the magnitude of the train's acceleration?

Express your answer to two significant figures and include the appropriate unit

b) What's the direction of the acceleration eastward or westward?

c) How far was the train from the cow when the engineer first applied the brakes Express your answer to two significant figures and include the appropriate units.