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As per your syllabus, after 2 m of cord unwinds at 25 N pull, the work done by the pull is which?
A100 J
B12.5 J
C25 J
D50 J
Answer & Solution
Correct answer: D. 50 J
syllabus Ex 6.12(b): W = F × distance = 25 × 2 = 50 J. Equals KE gained (energy conservation).
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