A spring of force constant 1500Nm -1 is acted upon by a constant force of...
PHYSICS
JAMB 1991
A spring of force constant 1500Nm-1 is acted upon by a constant force of 75N. Calculate the potential energy stored in the string
- A. 1.9J
- B. 2.8J
- C. 3.45J
- D. 0.43J
Correct Answer: A. 1.9J
Explanation
P.E = \(\frac{1}{2}\)Fe
= \(\frac{1}{2}\)\(\frac{F}{K}\)
= \(\frac{1}{2}\) x \(\frac{75 \times 75}{1500}\)
= 1.9J
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