Question

A scooterist moves along a circular track of radius 0.2 km and completes one revolution in 2 minutes. Determine velocity of the scooterist.

Answer 1

EXPLANATION

Radius of circular track = 0.2 km = 200m

Time taken to complete one revolution=

2 minutes = 120 seconds

TO FIND VELOCITY OF SCOOTERIST

VELOCITY =

TOTAL DISTANCE TRAVEL/TOTAL TIME TAKEN

v = d / t

D = 2πr

D = 2 X π X 200

D = 400π

V = D / T

V = 400π/120

V = 10.5m/s

Therefore,

velocity of scooterist = 10.5 m/s