A 0.40 kg football is thrown with a velocity of 15 m/s to the right. A stationary receiver catches the ball and brings it to resist in 0.20s. What is the force exerted on the ball by the receiver?

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.