1.3 A CAR STARTS MOVING RECTILINEARLY FIRST WITH ACCELERATION W=5M/S^2 THEN UNIFORMALY DECELARTING AT THE SAME RATE W COMES TO STOP THE TOTAL TIME TAKEN OF MOTION EQUALS TO T=25SEC THE AVERAGE VELOCITY DURING THAT TIME IS EQUAL TO V=72KM/HR HOW LONG DOES CAR MOVE UNIFORMALY?

 SORRY FOR BAD PICTURE