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16 December, 01:19

The tip of a pinwheel is 0.24 m from the center. The pinwheel spins 5 times each second. What is the tangential speed of the tip of the pinwheel? 0.30 m/s 1.2 m/s 1.5 m/s 7.5 m/s

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  1. 16 December, 01:35
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    When a body is moving in circular path at a distance r from its center its velocity at any instant will be directed tangentially. This is what we call tangential velocity. It is calculated as follows:

    Vt = r (ω)

    where ω = 5 rev/s (2π rad / rev) = 31.42 rad / s

    Vt = 0.24 (31.42) = 7.5 m/s
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