Question

Acceleration - time graph for a particle moving in a straight line is as shown in figure. Change in velocity of the particle from t = 0 to t = 6s is:-

• A. 10 m/s
• B. 4 m/s
• C. 12 m/s
• D. 8 m/s

Answer 1

The correct option is B 4 m/s

Change in velocity

$=$(sum of area of graph)

$=(\frac{1}{2}\times 4\times 4)+(\frac{1}{2}\times (+2\left)\right(-1\left)\right)-4$

$=8-4$

$=4x$