A bob of weight 0.1 N hangs from a massless string of length 50 cm.
PHYSICS
JAMB 2010
A bob of weight 0.1 N hangs from a massless string of length 50 cm. A variable horizontal force which increase from zero is applied to pull the bob until the string makes an angle of 60o with the vertical. The work done is
- A) 0.500 J
- B) 0.250 J
- C) 0.050 J
- D) 0.025 J
Correct Answer: D) 0.025 J
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