Question

an object moves along the x axis with initial position x(0)=2. the velocity of the object at time t>=0 is given by v(t)=sin(pi/3 t). what is the acceleration of the object at time t=4?? please help and show steps!

Answer 1

acceleration = dv/dt = (pi/3) cos ( (pi/3) t))
note:
i am assuming that its (pi/3) * t and not pi divided by 3t

Answer 2

its not clear from your question which it is