# Posts by Dydy

Total # Posts: 3

**calculus**

use to postion function s(t) = -4.9t^2 + vt + s for free-falling objects to estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. How high is the building of the splash is seen 6.8 seconds after the stone is ...

**calculus**

use to postion function s(t) = -4.9t^2 + vt + s for free-falling objects to estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. How high is the building if the splash is seen 6.8 seconds after the stone is ...

**calculus**

A projectile is shot upward from the surface of the Earth with an initial velocity of 120 meters per second. What is its velocity after 5 seconds?