You are driving to visit a friend who lives 77.0 km away. Starting from rest, you reach a
velocity of 69.0 mph in 12.0 km. You then maintain a constant velocity for the next 60.0 km.
Then in the last 5.00 km of the trip you slow down till the car comes to rest. How long does
it take you to travel the total distance of 77.0 km?