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A cyclist moving on a corcular track of radius 40m completes half a revolution in 40 sec. Its average velocity is nearly
9 years ago

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Steve
angular velocity: 2π/40 = π/20 rad/s
speed: 40πm/40s = π m/s
velocity: -80m/40s = -2 m/s in the direction from start to finish.
9 years ago

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