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# Can someone help me with this problem?

The driver of a train moving at a speed $$v_1$$ sights a goods train at a distance d ahead of him on the same track moving in the same direction with a slower speed $$v_2$$. He puts on brakes and gives his train a constant retardation $$a$$. Which of the following option is correct :

(A) $$d\geq\frac{2(v_1 - v_2)^2}{2a}$$

(B) $$d >\frac{(v_1 - v_2)^2}{2a}$$

(C) $$d >\frac{2(v_1 - v_2)^2}{a}$$

(D) $$d \geq\frac{(v_1 - v_2)}{2a}$$

Note by Kshitij Johary
4 years ago

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