1) A subway train starts from rest at a station and accelerates at a rate of 1.60 m/second squaredfor 8.0 seconds. It runs at constant velocity for 70.0 seconds, and slows down at -2.50 m/second squareduntil it stops at the next station. Find the total distance covered.

2) A ball is thrown vertically upward from the ground with a velocity of 40 meters per second. (a) How long will it take to rise to its highest point? (b) How high does the ball rise? (c) After how many seconds will it return to the ground?

It's difficult for me to understand if you use a computer to solve a problem, so please use paper and a pen. thanks a lot!