A50 kg wooden crate is slid across a flat surface for 60 meters by a force of 90.0 n. if the coefficient of sliding friction is 9.15, what will be the final speed of the crate?

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.