A) 120 m
B) 280 m
C) 60 m
D) 20 m
Correct Answer: D
Solution :
[d] Initial distance between trains is 300 m. displacements of trains can be calculated by area under V-t graph. Displacement of train 1=\[1=\frac{1}{2}\times 10\times 40=200m\] Dispacement of train\[2=\frac{1}{2}\times 8\times (-20)=-80m\] Which means it moves towards left. \[\therefore \] Distance between the two is 300-200-80-20 m.You need to login to perform this action.
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