posted by phirum .
A 1100 kg car coasts on a horizontal road with a speed of 19 m/s. After crossing a an unpaved, sandy stretch of road 32 m long, its speed decreases to 12 m/s. (a) Was the net force done on the car positive, negative, or zero? Explain (b) Find the magnitude of the average net force on the car in the sandy section.
hi answer is pi