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A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds....

Physics
JAMB 1994
A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds. Calculate the retardation.
  • A. 0.75ms-1
  • B. 1.33ms-2
  • C. 5.00ms-2
  • D. 7.50ms-2
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Correct Answer: Option A
Explanation
Retardation = \(\frac{u - v}{t}\)

= \(\frac{15 -0}{20}\)

= 0.75ms-1
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