Question

A car moving round a circular rest of a car take 120/s to do a lap of 8/km what is the speed in kmlh

Answer 1

speed = 240 kilometers per hour

Step-by-step explanation:

so we know speed = distance over time

speed= 120s

distance= 8km

8km/120s=0.0666km/sec

0.0666km covered in 1 sec

3,600 seconds- 1km/hr

0.0666/1 times 3600= 239.76

239.76= 240km/hr