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     EduGorilla 
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    A disc of radius r = 20 cm is rotating about its axis with an angular speed of 20 rad s–1. It is gently placed on a horizontal surface which is perfectly frictionless (as shown in the figure). What is the linear speed of point A on the disc?


    Options :-

    1. 1 ms–1
    2. 3 ms–1
    3. 2 ms–1
    4. 4 ms–1
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