An elephant\'s legs have a reasonably uniform cross section from top to bottom,
ID: 1295921 • Letter: A
Question
An elephant's legs have a reasonably uniform cross section from top to bottom, and they are quite long, pivoting high on the animal's body. When an elephant moves at a walk, it uses very little energy to bring its legs forward, simply allowing them to swing like pendulums. For fluid walking motion, this time should be half the time for a complete stride; as soon as the right leg finishes swinging forward, the elephant plants the right foot and begins swinging the left leg forward.
A)
An elephant has legs that stretch 2.3 m from its shoulders to the ground. How much time is required for one leg to swing forward after completing a stride?
Express your answer to two significant figures and include the appropriate units.
t=___ s
B)
What would you predict for this elephant's stride frequency? That is, how many steps per minute will the elephant take?
Express your answer as an integer.
n= _____ steps/minute
Explanation / Answer
It's actually 1.2 s and 97 steps/minute
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