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A 10g mass placed on the pan of a spring balance causes an extension of...

Physics
JAMB 1982

A 10g mass placed on the pan of a spring balance causes an extension of 5cm. If a 15g mass is placed on the pan of the same spring balance, the extension is
  • A. 3.3cm
  • B. 6.5cm
  • C. 7.5cm
  • D. 10.8cm
  • E. 15.0cm
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Correct Answer: Option C
Explanation
F \(\alpha\) e and m \(\alpha\) F

\(\frac{m_1}{e_1}\) = \(\frac{m_2}{e_2}\)

\(\frac{10}{5}\) = \(\frac{15}{e_2}\)

e2 = 7.5cm

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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