If the velocity of a sailboat changes from 4 m/s to 2 m/s over a period of time, what is true of the sailboat's acceleration?
A. it is positive
B. it is negative
C. it is equal to zero
D. it is equal to 2 knots/hr
Answer: B. it is negative
If the velocity of a sailboat changes from 4 m/s to 2 m/s over a period of time, what is true of the sailboat's acceleration?
A. it is positive
B. it is negative
C. it is equal to zero
D. it is equal to 2 knots/hr
Answer: B. it is negative