Question

A car travels $1000$ meters north and the $1000$ meters south. The entire trip takes $200$ seconds. What is the car's average velocity for the trip?

• A. $10m/s$
• B. $20m/s$
• C. $100m/s$
• D. $200,000m/s$
• E. $0m/s$

Answer 1

The correct option is E $0m/s$

The car returns to its initial position after the end of the trip, thus net displacement of the car is zero i.e $S=0$ m

$\therefore$ Average velocity of the car $v_{avg}=\frac{S}{t}=\frac{0}{200}=0$ $m/s$