Physics

A steady horizontal force F if magnitude 21N is apllied at the axle of a solid disk. the disk has mass 2.0kg and diameter of 0.10m. What is the linear speed of the center of the disk after it has moved 12m?

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  1. Nick S. ? i got 15.87 m/s.... apparently the right answer is 9 m/s tho .
    i assumed there's no torque.
    v^2 = 2 ax. a = F / m.

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  2. B.K is an

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  3. dont make of mrs keller shez da coolest, im tellin on u neil foglio and nick sun
    peace

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  4. I wanted to use torque = torque

    F*d = I*a

    I= 1/2m*r^2
    where a = v^2/r

    F*d = (1/2 *m*r^2)(v^2/r)

    still didn't get the answer its supposed to be B. 13 m/s

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