Tuesday

September 30, 2014

September 30, 2014

Posted by **Randi** on Saturday, October 20, 2012 at 9:19pm.

- College Alegbra -
**Reiny**, Saturday, October 20, 2012 at 11:13pmfrom your information, the height h is

h = -16t^2 + 54t +75 , where t is in seconds and h is in feet

dh/dt = -32t + 54

= 0 for a max h

32t = 54

t = 54/32 = 27/16 ---> time it took to reach max height = -16(27/16)^2 + 54(27/16) + 75

= 120.56 ft

h = -16(

**Answer this Question**

**Related Questions**

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

physics - An arrow is short vertically upward with an initial speed of 25m/s. ...

Calculus - A ball is thrown upward with an initial velocity of 96 feet per ...

Calculus - A ball is thrown upward with an initial velocity of 96 feet per ...

calculus - A ball is thrown upward with an initial velocity of 96 feet per ...

calculus - a ball is thrown upward at 96 feet per second from the top of a 100 ...

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

physics - A rock is shot vertically upward from the edge of the top of a tall ...

math - an object is thrown upward from the top of a 80-foot building with a ...

math - A projectile is launched vertically upward from the top of a 240-foot ...