3.A train suddenly brakes from 50 m/s to a
stop over a distance of 115 m.
a) What is the acceleration of the
train?
b) How much time does it take the
train to stop?
stop over a distance of 115 m.
a) What is the acceleration of the
train?
b) How much time does it take the
train to stop?
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Answer:
A- it didn't accelerated it decelerated from 50 m/s to 0m/s
B- It took 10 seconds before it went off
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