Answered: 1. Two students, A and B, of equal…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 8PE: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60.0°...

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Choose the correct answer:

1. Two students, A and B, of equal mass, compete to climb the San Cristobal hill by the car path. Student A makes the ascent in 30 minutes and student B delays a time of 15 minutes. If Wa is work minimum work done by student A and Wb is the minimum work done by student B, then it has to be:

A. Wa = Wb

B. Wa = 2Wb

C. 2Wa = Wb

D. You need to know the height of the hill.

E. None of the above.

2. Regarding the power developed by students A and B in the previous question, it can be said that:

A. Pa = Pb

B. Pa = 2Pb

C. Pa = Pb/2

D. Pa = Pb/4

E. None of the above

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