Question

A girl runs around a circular track of radius 65m at speed at 2m/s. What is her displacement after finishing 1 round​

Answer 1

Answer:

Displacement is the difference between the final and initial position.

s = pf - pi = Δp, where s is the displacement, pf is final position, pi is the initial position, and Δp is the change in position.

In your problem the girls initial position and final position are the same, pi = pf.

Therefore pf - pi = 0, and s = 0.

Zero displacement is the answer.

I hope this helps