I'rODIE'I'II i: unpmng a PrDIEI The velocity of a kinesin protein moving in a long, narrow. straight channel as a function of time is shown to the right. The protein initially begins 70 pm from one end of the channel. Take the positive direction to correspond to moving farther from this end of the channel. and the negative direction to correspond to moving closer to this end of the channel. 5:: E E: :a .t' E g A. Find the average acceleration from t = 2 s to t = '7 s. B. Over which time interval (or intervals} is the protein: speeding up, over which is it slowing down. and over which is it moving at constant speed? I . speeding up? 2. slowing down? 3. moving at constant speed? C. At t = 20 5. how far is the protein away from the end of the channel