Thursday

December 18, 2014

December 18, 2014

Posted by **TJ** on Wednesday, October 17, 2007 at 11:31am.

The equation h= -16t^2 +112t gives the height of an arrow shot upward from the ground with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height of 120 ft.

- Algebra -
**Reiny**, Wednesday, October 17, 2007 at 11:51amset your h equal to 120 and solve that routine quadratic equation.

You will get two answers for t, one will be the time to reach 120 feet on its way up, and the other the time when it was 120 feet high on its way down.

**Answer this Question**

**Related Questions**

algebra - The equation h = -16t^2 + 112t gives the height of an arrow, shot ...

math,correction - Can someone correct my answers thanks. Problem #1 The equation...

algebra,help - I need help with these problems can someone show me how to solve ...

Math - The equation h=-16t^2+112t gives the height of an arrow, shot upward from...

algebra - Please help me solve this: If an object is projected upward with an ...

Math - The height of a golf ball that is hit into the air with an initial ...

algebra - an arrow is shot into the air with an initial velocity of 96 feet per ...

Intermediate algebra, concepts and graphs - a bullet is fired into the air with ...

ap calculus - The height s of a ball, in feet, thrown with an initial velocity ...

algebra 2 - The height of an arrow shot in the air is given by the function h(t...