A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of 2m-2. The time required to bring the train to a complete halt is?
- 5s
-
10s
- 20s
- 40s
The correct answer is: B
Explanation
t = \(\frac{v - u}{a}\) = \(\frac{0 - 20}{-2}\) = 10sThere is an explanation video available .