Question

A car runs on a circular track at a constant speed. The circular track has a radius of 100m. If the car takes 62.8 on each lap, it's average speed is _________.


Don't answer without explaining yourself.

Answer 1

THIS QUESTION INVOLVES UNIFORM CIRCULAR MOTION    SO $v=2 \pi r/t$          2*3.14*100/62.8
=10   
so its average speed is 10 m/s

Answer 2

Answer:

100m/s will be the speed

Use:

2pi(100m)/62.8s