The Pace length is the distance between the rear of two consecutive footprints. If P be the pace length of a man in first step and he keeps on increasing his pace length such that AB =5/4P, BC = 3/2P and CD = 7/4P. If the length of the 4th step is 7/5 m. Class-6
Answers
Step-by-step explanation:
Answer:
n/P = 144
n = 144 * P
P = 1.64
n = 144 * 1.64 = 236.14
So Bernard is taking approximately 236 steps per minute, or almost 4 steps per second. That is faster than most people's running pace, let alone a walking pace, but we will go with it.
v = d / t
v = 1.64 m * 236.14 / minute
v = 387.2696 m / minute
To convert to km/h, use conversion fractions to change metres to kilometres and minutes to hours.
v = 387.2696 m / minute * (1 km / 1000 m) * ( 60 minutes / 1 hour )
v = 23.236176 km/h
Round that to 3 significant digits because of the number of digits in the question.
v ~= 23.2 km/h
This "walking" speed is about double what most people walk (12 km/h). This is a little more than the pace that most long distance runners set in a race. I don't think this is that good a formula.
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