Answer: negative.
- A negative
- B positive
- C exactly zero
- D infinite
Correct answer: A. negative
Explanation: Deceleration means the acceleration opposes the motion, so it is negative.
On a velocity-time graph for uniform acceleration, the slope of the line gives the acceleration and the shaded area under the line gives the displacement.
Concept context
Equations of motion, projectile motion, relative velocity. Foundation of all mechanics.