the diameter of wheel of the bus is 140cm.how many revolutions per minit must the wheel make in order to keep a speed of 6km per hour ?
Answers
Answered by
1
Answer:
One revolution = 2πr= 2×22/7×70
= 440 cm
= 4.4m
Speed= 6km/h
= 6×5/18= 5/3 m/sec
5/3 m/sec = 100m/min
Total revolution =
Speed/ distance cover/revolution
======== 100/ 4.4= 22 8/11
Answer === 22 8/11
Similar questions