(Answered) An objects locatio is described by the equationx6cm 12cm

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An objects locatio is described by the equation:

x=6cm + 12cm cos(6t - 2); angle is in radians & t is in seconds.

A) What is the amplitude of the motion?

B) What is the period of the motion?

C) What is the velocity of the motion when t=0.420 sec?

D) What is the first time x is a maximum after t=0?

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