Question

the wheel of a bicycle has a diameterof 72 cm and are rotating with an angular velocity of 12 rad/s. determine how much time the bicycle takes to travel 100m.
arc length = rØ , where Ø is the angle in radians
= 36(12) = 432 cm
so in 1 second the wheel covers 432 cm
so to cover 100 m or 10000cm would take
10000/432 or 23.15 seconds

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