I need some help with this

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine

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.