Question

For this velocity-time graph in which time interval is the object moving toward the reference point?

A. 7 to 11 s
B. 0 to 6 s
C. 11 to 20 s
D. 6 to 7 s

Answer 1

D. Only the interval 6-7s yields a negative velocity, meaning it's traveling back to the reference point.

Answer 2

D. 6 to 7 s

Step-by-step explanation:

When object is moving away from its reference point then its motion is known as positive motion

And when object moves towards the reference point then its motion is termed as negative motion because here the distance with respect to reference point is decreasing with time

so by the graph we can say that

object velocity is positive between

t = 0 to t = 6 s and t = 12 to t = 20 s

so in above interval of time it is moving away

while during time interval of t = 6 s to t = 7 s the motion its velocity is negative and hence it will move towards reference point