Calculate the work done when a force of 20N stretches a spring by 50mm.
PHYSICS
JAMB 1992
Calculate the work done when a force of 20N stretches a spring by 50mm.
- A. 0.5J
- B. 1.5J
- C. 2.0J
- D. 2.5J
Correct Answer: A. 0.5J
Explanation
W = \(\frac{1}{2}Fe\)
W = \(\frac{1}{2}\times 20 \times 0.05\)
W = 0.5J
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