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Distance vs Displacement

A 50 kg man ...

Question

A 50 $k g$ man with 20 $k g$ load on his head climbs up 20 steps of 0.25 $m$ height each. The work done by the man on the block during climbing is

A

5

J

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B

350

J

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C

1000

J

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D

3540

J

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Solution

The correct option is C 1000 $J$
$\begin{matrix} w = 20 \times g \times (20 \times \frac{25}{100}) = 1000 J H e n c e, o p t i o n C i s c o r r e c t a n s w e r . \end{matrix}$

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