Question

A graph showing the distance v/s time of a car is shown below. Determine the region where the car is:

• A. In Motion: $A,B,C$
  At Rest: $D$
  
• B. In Motion: $A,B,D$
  At Rest: $C$
• C. In Motion: $B,C,D$
  At Rest: $A$

Answer 1

The correct option is B In Motion: $A,B,D$

At Rest: $C$
We can see from the graph that in region $A$, $B$ and $D$, the distance covered is changing linearly with respect to time. Hence, the speed is non zero and hece the car is in motion.
In region $C$, the distance covered is zero with respect to time. Hence, the speed is Zero as no distance is covered and the car is at rest.