Q.
The $v - t$ graph for a particle is as shown. The distance travelled in the first four second is
A) 12 m
B) 16 m
C) 20 m
D) 24 m
Explanation
(d) Distance is defined as length of the path between two points.
In this case
$Disance = Area\ of\ v - t\ graph\ in\ 4\ s$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = Area\ of\ trangle = \frac{1}{2}base\ \times height\ $
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ = \frac{1}{2} \times 4 \times 8 = 16\ m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.