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
- 40s
-
10s
- 20s
- 5s
The correct answer is: B
Explanation
t = \(\frac{v - u}{a}\) = \(\frac{20 - 0}{2}\)= 10s
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