Question

A subway train starts from rest at a station and acceleration at a rate of 1.60 m/s^(2) for 14 s. It runs at constant speed for 70 s and slows down at a rate of 3.50 m/s^(2) until it stops at the next station. find the total distance covered.

Answer 1

rate=distance/time
You have your rates. You have your distances. Find both of those, then add them.