This is apparently a real world situation... I've run my own calcs but wouldn't mind some independent verification... so fire up your spreadsheets... here's the set up: A moving police car detects an oncoming vehicle travelling at 150km/h at point A. The police vehicle slows, stops and conducts a U turn to commence pursuit. The speeding vehicle is intercepted at point B some way down the road. Assumptions: - Police vehicle takes 20 seconds to slow, stop, conduct a U turn and return to point A - Assume the speeding vehicle begins accelerating uniformly immediately after detection to 211km/h over 8 seconds and then maintains that speed until interception. Questions: 1. How far has the speeding vehicle travelled in the time it takes for the police vehicle to return to the detection point? 2. Using point A as a reference point, what would be the average speed of the police car if the intercept point B is respectively a) 4km b)5km c)6km from point A. Look forward to the answers... and some possible follow up discussion.