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26 May, 12:19

If a soldier lifts a 2-kg counterweight 0.5 meter, how much work is done?

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  1. 26 May, 12:40
    0
    zero

    Step-by-step explanation:

    if counter weight ...

    he lifts it perpendicularly ...

    angle is 90°

    so ...

    w = f*d*cos ¢

    ¢ = 90°

    so

    cos 90° = 0

    and

    work = 0 watt
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