This question is typical on some driver's license exams: A car moving at 43 km/h skids 14 m with locked brakes. How far will the car skid with locked brakes at 107.5 km/h ? Assume that energy loss is due only to sliding friction . Answer in units of m .

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.