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Physics
Physics
Problem
A scooter experiences a constant resistive force of
200
N
200\,\text{N}
200
N
while travelling at
36
km
h
−
1
36\,\text{km\,h}^{-1}
36
km
h
−
1
. Determine the power needed to keep it moving at this speed. a)
720
W
720\,\text{W}
720
W
b)
20
W
20\,\text{W}
20
W
c)
2000
W
2000\,\text{W}
2000
W
d)
7200
W
7200\,\text{W}
7200
W
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