The position of an object is given by the equation x(t)=5t+2t+t. The particle is allowed to move for 2.0 seconds. (You must always show your work on all FR questions to receive full credit) a) Calculate the position of the particle. b) Calculate the velocity of the particle. c) Calculate the acceleration of the particle. d) What is the average acceleration of the particle over the first 2.0 seconds?