A car is traveling on a straight road. For seconds, the car's velocity v(t), in meters per second, is modeled by the piecewise-linear function defined by the graph above, Find Using correct units, explain the meaning of For each of v'(4) and v'(20), find the value or explain why it does not exist Indicate units of measure. Let a(t) be the car's acceleration at time t, In meters per second per second. For 0
