A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of...

JAMB 2013

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?

A. 5s
B. 10s
C. 20s
D. 40s

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Correct Answer: Option B

Explanation

t = \(\frac{v - u}{a}\) = \(\frac{0 - 20}{-2}\) = 10s

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A train with an initial velocity of 20ms-1 is subjected to a uniform deceleration of...

Correct Answer: Option B

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