Homework Help: math

Posted by Anonymous on Saturday, May 15, 2010 at 9:28am.

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 the air?
c.Determine when the ball is at maximum height. Find its maximum height.

i haven't got the slightest idea of how to do this.

math - Damon, Saturday, May 15, 2010 at 10:36am
a = -32 ft/s^2
v = 50 -32 t
h = 6 + 50 t - 16 t^2

find t when h = 0 (the positive answer)

max height is when v = 0, find t and h then.

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