Two cars collide and lock together on wet pavement, the coefficient of friction of tires on wet pavement is 0.250. Car 1 is 1310 kg and Car 2 is 1810 kg. Car 1 is traveling at 16.9 m/s and Car 2 is traveling at 22.4 m/s

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.