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प्रश्न
Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi?
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उत्तर
Given:
Force (F) = 10 N,
Displacement (s) = 30 cm
= 30 × 10−2 m
Find: Work done (W) = ?
Formula: W = F × s
Calculations:
W = 10 × 30 × 10−2
W = `(10 xx 30)/100`
W = 3 J
Work done by Ravi is 3 J.
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