A train of weight \[200\times {{10}^{4}}N\] is running on horizontal track at a constant speed of 10 m/s, overcoming a constant frictional force of \[200\,\,\times \,\,10\,N.\] What is the power of the engine drinking the train

A train of weight \[200\tim

1.	A train of weight \[200\times {{10}^{4}}N\] is running on horizontal track at a constant speed of 10 m/s, overcoming a constant frictional force of \[200\,\,\times \,\,10\,N.\] What is the power of the engine drinking the train
A.	800 kW
B.	1200 kW
C.	200 kW
D.	400 kW
Answer» D. 400 kW

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A train of weight \[200\times {{10}^{4}}N\] is running on horizontal track at a constant speed of 10 m/s, overcoming a constant frictional force of \[200\,\,\times \,\,10\,N.\] What is the power of the engine drinking the train

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