Assignment Submission For this assignment, you submit answers by question parts.

Question

Assignment Submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your best submission for each question port Is used for your score. A doughnut contains about 317 Calories. After eating this doughnut, you decide to compensate by taking the stairs instead of using the elevator. If each stair has a height of 22 cm, how many stairs must you climb to compensate for the doughnut? Assume all the energy in the doughnut can be converted to mechanical energy. (Take 75 kg as the mass of a typical person.) ___________ steps

Explanation / Answer

mass of person = 75 Kg

wieght = 75 x 9.8 = 735 N

Energy required to climb step of 22 cm = 735 x 0.22 = 161.7 J = 161.7 x 0.2389 cal

= 38.6 cal

Steps to be climb to use 317 cal = 317/38.6 = 8 (Approx.)

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