Question

If the average force exerted by peristalsis is 0.14 N, how much work does the small intestine do to move food along its entire length? Express your answer to two significant figures and include appropriate units.

Answer 1

Answer:

Explanation:

Length of small intestine = 6 m

force applied = .14 N

Work done = force x displacement

= .14 x 6

= 9.6 J

Answer 2

Answer:

Explanation:

Length of small intestine, L = 6 m

Force, F = 0.14 N

Work done is defined as the product of force and the distance traveled.

Work = Force x length of the intestine

W = 0.14 x 6

W = 0.84 Joule