A 8000kg engine pulls train of 5 wagon ,each of 2000kg ,along a horizontal track .if the engine exert a force of 40000N and the track offer friction force of 5000N then calculate :the net accelerating force and the acceleration of the train?
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Total mass =8000+2000×5
18000kg
Total force= 40000-5000(because friction will oppose motion here)
=3500N
So F= ma
3500N=18000×a
a=0.19 m/sec^2
Hope it will be helpfull
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