The following plot in figure $1$ depicts an object's motion. Describe this object's motion in detail for the first $7\mathrm{.}0$ seconds. Calculate and label on the plot all accelerations, any decelerations and displacements. Determine the initial velocity and final velocity between the $0\mathrm{.}00$ s and $2\mathrm{.}50$ s interval. Explain the peculiar peaks between $2\mathrm{.}50$ seconds and $5\mathrm{.}00$ seconds; What could have caused them? Why is there negative values for velocity; what does that indicate? If the object had a mass of $20\mathrm{.}0$ kg $,$ what would be the force exerted during its highest acceleration?