# Question: an elephant weighs 5000 kg and its legs each have...

###### Question details

An elephant weighs 5000 kg, and its legs each have a
circumference of 1.34 m. Assume for a moment that the leg muscles
have to supply all of the force needed to keep the elephant
standing.

a. By what factor does the maximum force produced by the legs
exceed the elephant’s weight?

b. Studies of humans show that the leg muscles spend 0.002
kcal/min per newton of force they provide. Supposing that elephants
have to spend the same energy to provide a force with their legs,
how many kcal would an elephant burn if it stayed standing for 24
hours? (Assume again that the leg muscles have to provide all of
the force needed to keep the elephant standing.)

c. Estimate the metabolic rate of the elephant, and compare it
to your answer from part b. What can you conclude about how the
elephant supports itself?

*please do not just copy exact answer to this problem already
found on Zookal, thank you*