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A person pulls along a rope wound up aro...

A person pulls along a rope wound up around a pulley with a constant force `F` for a time interval of `t` seconds. If `a` and `b` are the radii of the inner and the outer circumference `(a lt b)`, then find the ratio of work done by the person in the two cases shown in the figuer is `W_(1)//W_(2)`.
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