the radius of the wheel of the car is 1.75m, what is the speed of the car in km/hr , while the wheel makes 50 revolutions/min

• r=1.75
  circumference of circle = 11m
  1 min = 50 revolution
  1 rev = 1/50 min
  1 rev = 60/50 sec
  
  speed = distance/time
  = 11*50/60 * 5/18 km/hr
  =2.546 km/hr ans
• 9 years agoHelpfull: Yes(0) No(1)
• speed=distance/time
  =(2*pi*1.75)/(60/50) m/s
  =55/6 m/s
  = 33 km/hr
  
• 8 years agoHelpfull: Yes(0) No(0)