Xf = vt + x0 Practice It is suspected that a person cheated in a 200 m dash race. His velocity was measured to be 15 m/s and he finished the race in 13 seconds. How far of a head-start did he have (normal starting position would be an initial position of 0 m).

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.