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JAMB Physics 2017 Objective — Question 21

Question 21 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2017 Objective paper, with the correct answer and a full explanation.

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Calculate the time taken for a mango fruit that fell from the tree 20m to the ground. [g=10ms⁻²]

  • A. A. 5s
  • B. B. 10s
  • C. C. 4s
  • D. D. 2sCorrect

Explanation

s=½gt²: 20=½x10xt², t²=4, t=2s.

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