Posted by **Anonymous** on Sunday, May 16, 2010 at 2:34pm.

A ball falls from the top of a roof 320 feet above the ground. The formula h = -16t2 + 16t + 320 described the height of the ball above the ground, h, in feet, t seconds after the fall begins. How long will it take the ball to strike the ground?

## Answer this Question

## Related Questions

- Math- - A ball is thrown vertically upward with an initial velocity of 96 feet ...
- Algebra - A ball is dropped from the top of a building that is 784 feet high. ...
- math - A robotic basketball player tosses a ball upward from a height of 7 feet...
- Math - A ball is tossed straight upward with an initial velocity of 80 ft per ...
- Math - Please help if you can. If a ball is shot projected straight upward at a ...
- Pre-Calculus - A ball is thrown vertically upward with an initial velocity of 64...
- math - a ball is thrown down ward from a 320 ft building at a initial velocity ...
- calculus - A light is attached to the wall of a building 64 feet above the ...
- math - ball is thrown up at 88 ft/s from a height of 25 feet. Path of ball is y...
- Pre-Algebra - If a ping pong ball falls from the top of a building that is 168 ...

More Related Questions