19: A car with mass mc=1520kg is traveling west through an intersection with a speed of vc=8.16m/s when a truck of mass mt=1890kg traveling south at vt=11.83m/s fails to yield. The vehicles collide, they stick together, and they slide on the asphalt which has a coefficient of kinetic friction of k=0.500. Associate the positive x direction with east and the positive y direction with north. Part (a) Using the symbols provided in the palette below as opposed to their numeric equivalents, enter an expression, in Cartesian unit-vector notation, for the velocity of the vehicles immediately after the collision, as they begin to slide as a composite object