Question

4. The displacement –time graphs of an object moving along the X-axis in straight line with a positive slope ,the object has a
A. Steady increasing velocity B. Constant displacement C. Constant non-zero acceleration D. constant positive velocity. (Acceleration = 0.)

Answer 1

Answer: D. constant positive velocity.

Explanation: On a displacement–time graph the slope = velocity. A straight line with positive slope means the slope is constant and positive, so the object moves with a constant positive velocity (hence acceleration = 0).