Speedometer readings for a motorcycle at 12 seconds intervals are given in the table t sec 0 12 24 36 48 60 v ft sec 26 22 26 27 30 20 a Estimate the distance in feet traveled by the motorcycle during the time interval from 0 to 60 seconds using the velocities a the beginning of the time intervals b Give another estimate using the velocities at the end of the time periods