I. v = +2.0 m/s, Δt = 2.0 s
II. v = +3.0 m/s, Δt = 2.0 s
III. v = -3.0 m/s, Δt = 2.0 s
Which option ranks the displacement of there objects in decreasing order?
a. I, II, III
b. II, III, I
c. II, I, III
d. III, II, I
11. Which of these defines acceleration? Choose the correct answer.
a. the change in velocity
b. the change in displacement
c. change of velocity over time
d. the rate of change of displacement
12. An object moves at a constant speed in the direction of the arrow.
Which of these describes the object's movement? Choose the correct answer.
a. positive velocity
b. negative velocity
c. positive acceleration
d. negative acceleration