Thursday

July 31, 2014

July 31, 2014

Posted by **Brian** on Saturday, March 10, 2012 at 2:40pm.

The height h of the projectile at t seconds after launch is given by h = –16t2 + 72t + 20 feet.

(a) How many seconds after launch does the projectile attain maximum height? Show work.

(b) What is the maximum height? Show work.

**Related Questions**

math - If a projectile is launched from a platform 30 feet high with an initial ...

intermediate algebra - A projectile is launched directly upward from the top of ...

calculus - The height of a projectile launched into the air is given by h (t)= -...

math - A projectile is fired directly upward with a muzzle velocity of 860 feet ...

College Algebra - A projectile is thrown upward with an initial velocity of 272 ...

Pre-Calculus - Hello, A projectile is launched straight up from the ground with ...

Algebra II - A projectile is launched from a platform 10 meters above ground ...

Intermediate Algebra - If a projectile is fired straight upward from the ground ...

pre-calc - analyzing the motion of a projectile: a projectile is fired from a ...

math - The height of a projectile fired upward is given by the formula s = v0t...