Post-UTME Chemistry 2013 Objective — Question 14
Question 14 of 22 from the Post-UTME Screening (Post-UTME) Chemistry 2013 Objective paper, with the correct answer and a full explanation.
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A spring balance which is suspended from the roof of a lift carries a mass of 1kg at its free end. If the lift accelerates upward at 2.5ms^-1^2, determine the reading on the spring balance (g=10ms^-2)
- A. 25.0N
- B. 12.5NCorrect
- C. 7.5N
- D. 4.0N
Explanation
Reading = m(g+a) = 1 x (10+2.5) = 12.5N. (No printed answer key for this session; answer worked out independently.)
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