MathematicsA particle moves along a straight line according to the equation s=8cos⁡2t+4sin⁡t. The initial velocity is

A particle moves along a straight line according to the equation s=8cos2t+4sint. The initial velocity is

  1. A

    –5 units/sec

  2. B

    –4 units/sec

  3. C

    4 units/sec

  4. D

    5 units/sec

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    Solution:

    V=16sin2t+4costt=0V=4

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