A projectile is shot upward from the surface of Earth with

Last updated: 7/16/2022

A projectile is shot upward from the surface of Earth with an initial velocity of 123 meters per second. Use the position function below for free-falling objects. What is its velocity after 3 seconds? After 15 seconds? (Round your answers to one decimal place.) s(t) =-4.9t² + vot + 50 3 s 15 s