Physics
JAMB 2012
If a load of 1 kg stretches a cord by 1.2cm, what is the force constant of the cord? {g=10ms
-2}
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A.
866Nm-1
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B.
833Nm-1
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C.
769Nm-1
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D.
667Nm-1
Correct Answer: Option B
Explanation
K = \(\frac{F}{e}\)
K = \(\frac{1 \times 10}{\frac{0.2}{100}}\)
K = \(\frac{10}{12} \times \frac{1000}{1}\)
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