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Physics
Physics
Problem
A cyclist maintains a constant force of
180
N
180\,\text{N}
180
N
while riding at
18
km
h
−
1
18\,\text{km\,h}^{-1}
18
km
h
−
1
. Determine the power the cyclist must supply. (Take
1
km
h
−
1
=
5
18
m
s
−
1
1\,\text{km\,h}^{-1}=\dfrac{5}{18}\,\text{m\,s}^{-1}
1
km
h
−
1
=
18
5
m
s
−
1
.)
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