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

Physics
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

There is an explanation video available below.

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Explanation Video

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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
JAMB CBT Mobile App 2024 - Free Download
JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
JAMB CBT 2024 - Candidates, Schools, Centres, Resellers - Get Ready!
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
JAMB CBT Mobile App 2024 - Free Download
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709