A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of 2ms-2. The time required to bring the train to a complete halt is

A.

40s

B.

10s

C.

20s

D.

5s

View answer & explanation

Correct answer is B

t = \(\frac{v - u}{a}\) = \(\frac{20 - 0}{2}\)

= 10s

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