Sam, whose mass is 70 kg, straps on his skis and starts down a 63 m -high, 20° frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. ▼ Part A Use work and energy to find Sam's speed at the bottom. Express your answer to two significant figures and include the appropriate units. xa v= 32.77 HÅ Xb Provide Feedback a . x 10n m S www. ? X Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining

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Chapter1: Units, Trigonometry. And Vectors
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Assignments
Item 7
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<HW08: Conservation of Energy and Momentum
PHYS 211 - Summer 2023 - UP
PH
Sam, whose mass is 70 kg, straps on his skis and starts
down a 63 m -high, 20° frictionless slope. A strong
headwind exerts a horizontal force of 200 N on him as he
skies.
▼
Part A
V=
L
Ti
xa
32.77
Use work and energy to find Sam's speed at the bottom.
Express your answer to two significant figures and include the appropriate units.
HÅ
Xb
Provide Feedback
op
a
b
MacBook Pro
→
Ne
m
S
X.10n
Submit Previous Answers Request Answer
Int
X Incorrect; Try Again; 3 attempts remaining
?
stu
P
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Mic
Ch
Mic
Assignments
Pea ★ COL ★ COL
Item 9
Sar
<HW08: Conservation of Energy and Momentum
PH
Six dogs pull a two-person sled with a total mass of 280 kg.
The coefficient of kinetic friction between the sled and the
snow is 0.080. The sled accelerates at 0.75 m/s² until it
reaches a cruising speed of 15 km/h.
op
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P Pe [Sc P Pe
▼
Part A
Pdogs=
Submit
Part B
What is the team's maximum power output during the acceleration phase?
Express your answer with the appropriate units.
HÅ 3
Pdogs =
Submit
Value
Provide Feedback
Request Answer
op
μA
Ne
Value
What is the team's power output during the cruising phase?
Express your answer with the appropriate units.
Request Answer
Units
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Int
Units
P Pearson
Copyright © 2022 Pearson Education Inc. All rights recopied Terror of Lice
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Transcribed Image Text:Mic Ch Mic Assignments Pea ★ COL ★ COL Item 9 Sar <HW08: Conservation of Energy and Momentum PH Six dogs pull a two-person sled with a total mass of 280 kg. The coefficient of kinetic friction between the sled and the snow is 0.080. The sled accelerates at 0.75 m/s² until it reaches a cruising speed of 15 km/h. op op P Pe: e.com/course.html?courseld=17916803&OpenVellumHMAC=ffbedfebe07f00deb571507087ff1ab7&key=2731617288184784456262023#10301 ▼ P Pe [Sc P Pe ▼ Part A Pdogs= Submit Part B What is the team's maximum power output during the acceleration phase? Express your answer with the appropriate units. HÅ 3 Pdogs = Submit Value Provide Feedback Request Answer op μA Ne Value What is the team's power output during the cruising phase? Express your answer with the appropriate units. Request Answer Units www C Int Units P Pearson Copyright © 2022 Pearson Education Inc. All rights recopied Terror of Lice ? stu ? ор Pe Privacy Policy | Dormiccions L Per H Contact
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