- #1
Nanu Nana
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Homework Statement
A car (mass 900 kg) runs 12 km along a level road at a constant speed of 80 km / h. The friction force is 500N. Calculate the work done by the engine
Homework Equations
W= F x displacement[/B]
The Attempt at a Solution
W= (900x 9.81) N x 12000m
W=10594800 J
But this is wrong .answer should be 6 x10^6 J