The pacelength P is the distance between the rear of two consecutive footprints. For men, the formula, n/P = 144 gives an approximate relationship between n and P where, n = number of steps per minute and P = pacelength in meters. Bernard knows his pacelength is 164cm. The formula applies to Bernard's walking. Calculate Bernard's walking speed in kmph.

a) 23.238 b) 8.78 c) 11.39 d) 236.16

• n/p=144
  n=144*1.64 steps per minute
  distance covered in 1 min =144*1.64*1.64 m
  distance covered in 1 hour=144*1.64*1.64*60 m
  or (144*1.64*1.64*60)/1000 km or 23.238144 kmph
  
• 13 years agoHelpfull: Yes(18) No(0)
• Since P=164cm or that is equal to 1.64m.
  So
  n/p=144
  or n=144*P
  or n=144*1.64 steps/min
  Distance moved by Bernard is 144*1.64*1.64 meter/min
  So that is equal to 144*1.64*1.64*5/18 kmph=23.62kmph
• 13 years agoHelpfull: Yes(15) No(15)
• Since P=164cm or that is equal to 1.64m.
  So
  n/p=144
  or n=144*P
  or n=144*1.64 steps/min
  Distance moved by Bernard is 144*1.64*1.64 meter/min(in mints n dist in metres)
  So that is equal to 144*1.64*1.64*60/1000 kmph=23.62kmph
• 13 years agoHelpfull: Yes(8) No(2)
• pacelength is 164cm=164/100=1.64m
  v=s/t=1.64/(1/144)=1.64*144=236.16
• 13 years agoHelpfull: Yes(1) No(17)