Posted by **Abbey** on Friday, April 16, 2010 at 3:33pm.

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

b) How long is the ball in the air?

This is the part I need help on. Can I put the y equation into my graphing calculator to solve for t?

c) Determine when the ball is at maximum height. Find the maximum height.

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