Meggy lep

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Questions

The following questions were asked by visitors named Meggy lep.

The train slows down uniformly from a speed of 50m/s to a speed of 10m/s in a time of 20sec,During the next 30sec,it accelerates uniformly to a speed of u metres/sec.calculate the retardation from t=0 to t=20?
12 years ago

Answers

The following answers were posted by visitors named Meggy lep.