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The distance (y) of an item from the origin at time (t) can be shown by y(t) = 1/8(cos t ) for 0 t 2pi.

The distance (y) of an item from the origin at time (t) can be shown by y(t) = 1/8(cos t) for 0 t 2pi.

a. show expression for its velocity.

b. find the acceleration for the item.

c. when will the acceleration be 0?

d. When's the speed of the item at maximum?

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