Question

Find the average speed of bicycle if it complete two rounds of circular tracks of radius 140 meter twice in 5 minutes 52 seconds

Answer 1

Answer:0.39

Explanation:

speed = distance

             -------------

               time

and minuites are converted to sec

Answer 2

Answer:5 ms-1

Explanation:radius is 140 Circumfrance is equal to 2 pie r

2*22/7*140

880

It cover 2 rounds so 880+880

1760

5 min 52 sec

352 sec

Speed is distance/time

1760/352

5 ms-1