Question

An athlete runs three laps of a $100m$ track with the constant speed of 20 km/hr. Find out the total displacement of athlete ?

• A. $-1600m$
• B. $-400m$
• C. $0$
• D. $400m$
• E. $1600m$

Answer 1

The correct option is C $0$

After three laps, the athlete finally comes to his initial position where he started from. Thus total displacement of the athlete after 3 laps is zero i.e $S=0$ m