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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §1.4 Circular Motion, #5 · Calculus · Derivatives

A ball travels around a unit circle (radius 1) with speed 3…

A ball travels around a unit circle (radius 1) with speed 3, starting from angle zero. At time $t$ ,
(a) what angle does it reach ?
(b) what are its $x$ and $y$ coordinates ?
(c) what are its $x$ and $y$ velocities ? This part is harder.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §1.4 Circular Motion, #5

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