Susan and Daphne both have a mass of 60 kg and are racing up the stairs to their
ID: 1458538 • Letter: S
Question
Susan and Daphne both have a mass of 60 kg and are racing up the stairs to their dorm room. There are 10 steps, each 0.2 m high. Daphne wins by 0.7 s. Answer the questions below using 1-2 complete sentences: (c) Conceptually (that is, use word(s) not numbers), what force is considered when calculating the work of climbing up the stairs? (3 pts) Who performed more mechanical work and why? Who performed more mechanical power and why? Conceptually, what force is considered when calculating the work of climbing up the stairs?
Explanation / Answer
In this problem Susan and Daphen both have same weight (60kg) they cover total distance 20m. Daphen win by 0.7sec means he work hard than Susan.
The amount power is equal to amount of workdone over given amount of time, p=W/t to calculate amount of work,first calculate how much force exerted by given distance.force in this case calculated by multiplying downward acceleration due to gravity by your mass.
Power= acceleration due to gravity*distance*mass/time
From this equations we can calculate required power.
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