Kartianna is pushing a lawn mower using a force of 300 N. If she pushes the mower a distance of 800 m, how much work has she done? A
1,100
B
24,000 J
С
110,000 J
D
240,000

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.