Find the Speed of the Object Each Time It Crosses

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The Answer is The object crosses the x-axis when y = 0:
y = 8sin t - 5sin 2t = 8sin t - 10sin t cos t = (sin t)(8 - 10cos t) = 0

The object crosses the x-axis when y = 0: y = 8sin t - 5sin 2t = 8sin t - 10sin t cos t = (sin t)(8 - 10cos t) = 0 At t = 0, speed = 2 At , speed = 18 At , speed = 14.843 At , speed = 14.843

At t = 0, speed = 2
At The object crosses the x-axis when y = 0: y = 8sin t - 5sin 2t = 8sin t - 10sin t cos t = (sin t)(8 - 10cos t) = 0 At t = 0, speed = 2 At , speed = 18 At , speed = 14.843 At , speed = 14.843

, speed = 18
At The object crosses the x-axis when y = 0: y = 8sin t - 5sin 2t = 8sin t - 10sin t cos t = (sin t)(8 - 10cos t) = 0 At t = 0, speed = 2 At , speed = 18 At , speed = 14.843 At , speed = 14.843

, speed = 14.843
At The object crosses the x-axis when y = 0: y = 8sin t - 5sin 2t = 8sin t - 10sin t cos t = (sin t)(8 - 10cos t) = 0 At t = 0, speed = 2 At , speed = 18 At , speed = 14.843 At , speed = 14.843

, speed = 14.843

Find the Speed of the Object Each Time It Crosses

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Find the Speed of the Object Each Time It Crosses

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Correct Answer:
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