If W is the dead weight of the train in tones and A is the acceleration of the train in kmphps then the tractive effort required for linear acceleration is given by

If W is the dead weight of the train in tones and A is the acceleratio

1.	If W is the dead weight of the train in tones and A is the acceleration of the train in kmphps then the tractive effort required for linear acceleration is given by
A.	WA newtons
B.	177.7 WA newtons
C.	277.8 WA newtons
D.	388.8 WA newtons
Answer» D. 388.8 WA newtons