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Physics
Physics
Problem
An engine develops
90
kW
90\,\text{kW}
90
kW
of power while driving a train at
60
km
/h
60\,\text{km\!/h}
60
km
/h
. What is the driving force on the train? (Give your answer in kilonewtons.) a)
1.5
kN
1.5\,\text{kN}
1.5
kN
b)
5.4
kN
5.4\,\text{kN}
5.4
kN
c)
54
kN
54\,\text{kN}
54
kN
d)
0.54
kN
0.54\,\text{kN}
0.54
kN
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