Problem 1: One-D Kinematics Concept (30 points) X start stop t SIDES A bug walks on a horizontal wire. The plot above shows the position of the bug for some time interval from start to tstop. The plot shown is smoothly curved and continuous. 400 Part (a) (10 points): During the walk, are there any points in time or any time intervals where the bug has zero velocity? If so, label each of these on the plot with the letter symbol "O". Important: Explain your work. Write one or two sentences to explain how and why you know the velocity is zero at these points? - Part (b) (5 points): During the walk, are there any intervals of time where the velocity is constant (or very nearly so)? If so indicate only one example of this on the plot by writing over the curve in this region and labeling this with the letter "C". Important: Explain your work. Write one or two sentences to explain how and why you know the velocity is constant on this interval. Part (c)(10 points): During the walk, are there any intervals of time where the acceleration is negative? If so, label each of these on the plot with the letter symbol "A". Important: Explain your work. Write one or two sentences to explain how and why you know the acceleration is negative on these intervals.