Pre Calc
posted by Rebekah .
Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet?
a) Find parametric equations that model the motion of the ball as a function of time.
b) How long is the ball in the air?
c) When is the ball at its maximum height? Determine the maximum height of the ball.
Thanks

Pre Calc 
Steve
x(t) = 0
y(t) = 5 + 40t  16t^2
Now just solve for t when y=0
Find the vertex of the parabola.
Respond to this Question
Similar Questions

calculus
A baseball pitcher throws a baseball with an initial velocity of 133 feet per second at an angle of 20° to the hoizontal. The ball leaves the pitcher's hand at a height of 5 feet. Find parametric equations that descrive the motion … 
PreCalc
The height s of a ball, in feet, thrown with an initial velocity of 112 feet per second from an initial height of 20 feet is given as a function of time t (in seconds) by s(t)= 16t^2+112t+20. What is the maximum height of the ball? 
Math
Projectile motion: Let's suppose you throw a ball straight up with an initial speed of 50 feet per second from a height of feet. a) Find the equation that describes the motion as a function of time. My answer was x = 0 and y=16t^2+50t+6 … 
Math(Please help)
Projectile motion: Let's suppose you throw a ball straight up with an initial speed of 50 feet per second from a height of feet. a) Find the equation that describes the motion as a function of time. My answer was x = 0 and y=16t^2+50t+6 … 
math
Let’s suppose you throw a ball straight up with an initial speed of 50 feet per second from a height of 6 feet. a.Find the parametric equations that describe the motion of the ball as a function of time. b.How long is the ball in … 
trig
Bob throws a ball straight up with an initial speed of 50 feet per second from a height of 6 feet. (a) Find parametric equations that describe the motion of the ball as a function of time. (Do this on paper. Your instructor may ask … 
precalc
Physics: a ball is thrown vertically upward with an initial velocity of 80 feet per second. the distance (in feet) of the ball from the ground after t seconds if s=80t16tt^2 a) draw the illustration b) for what time interval is the … 
Pre calc
Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet? 
PreCal
A baseball player throws baseball at a velocity 139ft per second at an angle of 20 degrees. The ball leaves the players hand at a height of 5 feet. The path of the ball has a parametric equation x=v(o)t cos(o) and yh+v(o)tsin(o)16t^2. … 
PreCalculus 1
Please help me answer this question. I have finished the other two parametric equations on my own, but I am confused as to how to do this one. 4. A ball is hit at an angle of 17¢X. The ball is hit when it is 2.5 feet above the ground …