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     EduGorilla 
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    A solid wheel of radius 10 cm is being winded by a light inextensible string and mounted on a horizontal axis with frictionless bearing. One end of the string is tied to a mass of 5 kg. If the mass of the wheel is 5 kg, then what will be the kinetic energy of the wheel when 2 metre length of the chord is unwound?
    (Assume that initially the wheel was at rest and the length of the chord unwinded is negligible. The height of the centre of the axle from the ground is 5 m)

    Options :-

    1. 84 J
    2. 100 J
    3. 145 J
    4. 1000 J
    5. None of these
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