Question

an athelete is running on a circular track of radius 50m. calculate the displacement of the athelete after completing 5 rounds of the track

Answer 1

radius of track = 50 m
circumference of track = 2πr
= 2×22÷7×50
=2200÷7
it covers 2200/7 distance in one round .
displacement after 5 rounds will be 2r= diameter
2×50
=100m