If an object moves along the y-axis (marked in feet) so that its position at time x (in seconds) is given by f(x) = 156x13x², find the following. (A) The instantaneous velocity function v = f'(x) (B) The velocity when x = 0 and x = 1 sec (C) The time(s) when v = 0 (A) v(x) =

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