Answer: zero.
- A zero
- B a constant non-zero value
- C steadily increasing
- D negative
Correct answer: A. zero
Explanation: Constant velocity means no change in velocity, so acceleration is zero.
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.