Question

the diameter of a bullock cart wheel is 14/11 m this wheel makes ten complete revolutions per minute what would be the speed of the cart in kilometres per hour ​

Answer 1

Answer:    2.4 km/h

Step-by-step explanation:

Diameter of wheel =  11 /14  m, Radius =  7/11 m

Distance traveled in 1 revaluation = 2πr = 2 ×  22 /7  ×  7/11 = 4 m

time taken to cover 40m = 1min

speed of car =  distence/time  = 40/1 = 40 m/min

(40 × 60 ) / 1000 km/h  

= 2.4 km/h