Answer: constant velocity, zero acceleration.
- A constant velocity, zero acceleration
- B a steadily increasing velocity
- C zero velocity all throughout
- D a steady negative acceleration
Correct answer: A. constant velocity, zero acceleration
Explanation: A horizontal v–t line means the velocity is constant, so the 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.