Question

Which one of the following represents the motion of an object with a positive acceleration? 

 

• A. A
• B. B
• C. C
• D. D

Hint:

A straight, upward-sloping line in a {velocity–time graph} always indicates constant positive acceleration.

Answer 1

The Correct Option is C

Step 1: Recall the definition of acceleration.
Acceleration is the rate of change of velocity with respect to time. Positive acceleration means velocity increases with time.
Step 2: Analyze the given graphs.
(A) shows position increasing linearly — constant velocity (zero acceleration).
(B) shows position constant — object at rest (zero velocity, zero acceleration).
(C) shows velocity increasing linearly with time — constant positive acceleration.
(D) shows velocity constant — no acceleration.
Step 3: Conclusion.
Hence, the correct graph representing positive acceleration is (C).