A 70kg bicyclist (including the bicycle), initially at rest pedals up a hill. She reaches a speed of 4m/s despite experiencing a 20N drag during her ride. The distance and height of the hill are shown. Neglect any friction impeding her motion and the rotational energy of the wheels. List the energy types at the initial and final time and whether work 75m and loss (due to non-conservative forces) occur as well as the 13m corresponding amounts of energy. reference level initial: Nene o 9=10mls2 Vsand =343 m J work? Wrk = %3D loss? Less -IS00U final: GPE/KEO What is the average thrust she must generate? 149 N <> %3D %3D

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A 70kg bicyclist (including the bicycle), initially at rest
pedals up a hill. She reaches a speed of 4m/s despite
experiencing a 20N drag during her ride. The distance
and height of the hill are shown. Neglect any friction
impeding her motion and the rotational energy of the
wheels.
List the energy types at the initial and final time and whether work
75m
and loss (due to non-conservative forces) occur as well as the
13m
corresponding amounts of energy.
reference level
initial: Nene o
9=10mls2
Vsand =343 m
J
work? Wrk =
%3D
loss? Less -IS00U
final: GPE/KEO
What is the average thrust she must generate?
149 N
<>
%3D
%3D
Transcribed Image Text:A 70kg bicyclist (including the bicycle), initially at rest pedals up a hill. She reaches a speed of 4m/s despite experiencing a 20N drag during her ride. The distance and height of the hill are shown. Neglect any friction impeding her motion and the rotational energy of the wheels. List the energy types at the initial and final time and whether work 75m and loss (due to non-conservative forces) occur as well as the 13m corresponding amounts of energy. reference level initial: Nene o 9=10mls2 Vsand =343 m J work? Wrk = %3D loss? Less -IS00U final: GPE/KEO What is the average thrust she must generate? 149 N <> %3D %3D
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