1. Describe the transfer of energy which enables a person to climb the stairs.
2. How are energy expenditure and potential energy of two different people related at the top of the stairs?
3. What are the most important physical characteristics required for maximum power output?
4. Which three sports/sports event must a person be able to:
a) generate a lot of force
b) do much work
c) develop great power
2007-04-30 12:54:54 · 2 answers · asked by Chess 2 in Science & Mathematics ➔ Physics
1. There is metabolic conversion of glucose from the blood combined with oxygen that gets used by the muscles in the legs to climb the stairs. The person climbing will be doing work against gravity at the rate of m*g*h per riser of the stairs. The person will have a vertical and horizontal speed which can be related to kinetic energy as .5*m*v^2.
2. From what I did above, the mass and speed of the climb relate to energy expenditure.
3. Maximum power output is related to the ability to circulate blood and absorb oxygen.
4. Cycling, jumping, rugby
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2007-05-01 06:28:58 · answer #1 · answered by odu83 7 · 0⤊ 0⤋
What is your favorite word contained within this eleven word question
2016-05-17 14:06:53 · answer #2 · answered by ? 3 · 0⤊ 0⤋