A bus travels 320 km south along a straight path with an average velocity of 88 km/h to
the south. The bus stops for 27 min, then it
travels 230 km south with an average velocity
of 65 km/h to the south.
How long does the total trip last?
Answer in units of h.

A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s