Question

Figure represents the displacement-time graph of motion of two cars A and B. Find the distance by which the car B was initially ahead of Car A

• A. $-40km$
• B. $40km$
• C. $0km$
• D. $100km$

Answer 1

Answer: (B)

$40km$

At t=0,
Displacement of car A, $D_A=40km$
Displacement of car B, $D_B=0m$
Therefore, car B was initially 40 km ahead of Car A.