1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?
1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![Useful information
gravitational acceleration
Gravity
Power
Momentum
Impulse
P =
Newton's 2nd law
AE sys
At
P = F cos 0 vx
Fg = -mg
Ug = mgy
Ap=
1
= 9.8 m/s²
||
→>>
p = mv
Ap
At
个
F(t) dt
dE sys
dt
Tot
→ area under the F-t graph
dp
dt
F
I
t](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcef3f1b2-56cd-4f45-949e-fc7a38ef994c%2F882c46f7-2a7b-44a3-a011-98a0c40394dd%2F0ecnww_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Useful information
gravitational acceleration
Gravity
Power
Momentum
Impulse
P =
Newton's 2nd law
AE sys
At
P = F cos 0 vx
Fg = -mg
Ug = mgy
Ap=
1
= 9.8 m/s²
||
→>>
p = mv
Ap
At
个
F(t) dt
dE sys
dt
Tot
→ area under the F-t graph
dp
dt
F
I
t
![- Questions
1. Knight P9.60 A 90.0 kg firefighter needs to climb
the stairs of a 20.0 m tall building while carrying a
40.0 kg backpack filled with gear. How much
power does he need to reach the top in 55.0
seconds?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcef3f1b2-56cd-4f45-949e-fc7a38ef994c%2F882c46f7-2a7b-44a3-a011-98a0c40394dd%2F7em05o9g_processed.jpeg&w=3840&q=75)
Transcribed Image Text:- Questions
1. Knight P9.60 A 90.0 kg firefighter needs to climb
the stairs of a 20.0 m tall building while carrying a
40.0 kg backpack filled with gear. How much
power does he need to reach the top in 55.0
seconds?
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