The real answer is 200 N to the left
--I took the quiz--
A) line segment AB is showing the cart traveling at 10 m/s.
B) Line segment CD is showing acceleration as the line has a straight increasing slope.
C) Line segment DE is showing the cart is traveling at a constant rate.
D) Line segment BC is showing acceleration as the cart is increasing its speed.
connexus! Answer b...
The answer is B.......