In the last lap of the Daytona 500, a driver is passing the leader in turn 4 for 1 point the win traveling at 98.3 m/s. They wreck, decelerating at -19.66 m/s^2 and come to a complete stop just short of the finish line. How long did it take for the cars to stop and lose the race?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.