The velocity (v) - time (t) plot of the motion of a body is shown below :

The acceleration (a) - time(t) graph that best suits this motion is :




Step 1: Analyze the Velocity-Time Graph
The slope of the velocity-time (v-t) graph represents acceleration. From the given plot:
The velocity increases linearly with time, implying constant acceleration.
Step 2: Match with the Acceleration-Time Graph
Since the acceleration is constant, the acceleration-time (a-t) graph must be a horizontal straight line.
Step 3: Conclusion
The correct acceleration-time graph is option (3) 
A wheel of a bullock cart is rolling on a level road, as shown in the figure below. If its linear speed is v in the direction shown, which one of the following options is correct (P and Q are any highest and lowest points on the wheel, respectively) ?
