Answer with explanation: The cart is being pulled through a pully with weights attached ( As described in the exercise problem), the weights hit the ground and the cart stops halfway on the track we need to (a) Draw the free body diagram as mentioned and (b) Draw the Position/time, Velocity/time, acceleration/time and force/time plots:
(a) Free body diagrams before and after:
(2) Plots of quantities associated with motion:
The plots with complete labels are as follows, note the labeling of each plot!
(i) Position vs time
Note this is the position along the x-axis or the horizontal
(ii) Velocity vs time
(iii) Acceleration vs time
(iv) Force with time