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A boy pushes book kept on a table by applying force of 6 N. Find work done by the force if book displaced to 50 cm along the direction of push

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3 J

- 3 J

300 N

answer is A.

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Detailed Solution

Force = 6 N

Displacement (s) = 50 cm = 0.5 meter [along the direction $θ = 0 °$ ]

$W o r k : F . S = 6 \times \frac{5}{10} = 3 J$

$F . S \cos θ = F . S \cos 0^{o} = F . S = 3 J$

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