An open freight car rolls friction free along a horizontal track in a pouring rain that falls vertically. As water accumulates in the car, the car’s speed
A. increases.
B. decreases.
C. doesn’t change.
D. need more information
Answer:B
An open freight car rolls friction free along a horizontal track in a pouring rain that falls vertically. As water accumulates in the car, the car’s speed
A. increases. B. decreases. C. doesn’t change. D. need more information