Required information At 3:00 PM., a bank robber is spotted driving north on |15 at milepost 128, His speed is 145.0 mi/h. At 3.37 PM., he is spotted at milepost 178 doing 103.0 mi/h. [Assume a straight highway). Assume north to be positive. What is the bank robber's displacement during this time interval? Enter a positive value if the displacement is toward north and enter a negative value if the displacement is toward south