A train is travelling down a straight track at 20 m/s when the engineer applies its brakes, resulting in an acceleration of -1 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied?
A train is travelling down a straight track at 20 m/s when the engineer applies its brakes, resulting in an acceleration of -1 m/s2 as long as the train is in motion. How far does the train move during a 40-s time interval starting at the instant the brakes are applied?
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Transcribed Image Text:A train is travelling down a straight track at 20 m/s when the engineer applies its brakes,
resulting in an acceleration of -1 m/s2 as long as the train is in motion. How far does the
train move during a 40-s time interval starting at the instant the brakes are applied?
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