An object moves 10 m east in 30 s and then returns to its starting point taking an additional 50 s.If west is chosen as the positive direction,what is the sign associated with the average velocity of the object?
A)+
B)−
C)0 (no sign)
D)any of the above

Question

Quizplus · Accepted Answer

The average velocity is calculated using the total displacement over the total time. Since the object returns to its starting point, its total displacement is 0, making the average velocity 0, which has no sign.

An Object Moves 10 M East in 30 S and Then