SOLUTION: calculating hang time. find the hangtime for a golfball hit 80 feet into the air? I have t + 80 so far

Question 550610: calculating hang time. find the hangtime for a golfball hit 80 feet into the air? I have t + 80 so far
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
t+80 has nothing to do with anything. In fact, t is a time and 80 is a distance, so you can't add them.

We have

(assume x_0 = 0) where g is approximately -32 ft/s^2.

You want to find the value of t such that (t,80) is the vertex of a quadratic polynomial. This occurs when t = -v0/g (recall that the vertex of a polynomial in the form ax^2 + bx + c occurs at x = -b/2a). Replace t with this expression, solve for v0, then find t.

RELATED QUESTIONS
Please help find the hang time for a golfball hit 80 feet into the... (answered by Alan3354)

The time a basketball player spends in the air when shooting a basket is called "the hang (answered by Alan3354)

please help me i wanna see if this is the answer If a pro basketball player has a... (answered by stanbon)

The height,h,(in feet)of a baseball that is popped up into the air is a quadratic... (answered by solver91311)

Story problem: A tennis ball is hit upward with a velocity of 48 feet per second.... (answered by stanbon)

I'm stumped about this problem. A rocket is fired into the air. The height of the rocket (answered by 303795)

HELP!!! tonisha hit a ball into the air with an initial velocity of 48 feet per... (answered by bucky)

A basketball player's hang time is the time spent in the air when shooting a basket. The... (answered by Fombitz)

Thank you! You hit a baseball straight into the air. The baseball is hit with an initial... (answered by ankor@dixie-net.com)