thanks

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- May 23rd 2006, 02:56 PMJohnSenaPlease - Need help tonight on a couple more calc problems
thanks

- May 23rd 2006, 03:12 PMThePerfectHackerQuote:

Originally Posted by**JohnSena**

- May 23rd 2006, 03:15 PMJohnSena
thanks for the quick answer

- May 23rd 2006, 03:16 PMThePerfectHackerQuote:

Originally Posted by**JohnSena**

For the second part you need to find,

- May 23rd 2006, 07:47 PMCaptainBlackQuote:

Originally Posted by**JohnSena**

This will have two roots, one positive and the other negative, the

negative root is unphysical but the positive one is what you want.

The roots are:

So the ball is in the air seconds.

b) The maximum height is achieved when is

a maximum. As this is a quadratic we know this occurs midway

between the roots, so it occurs at ,

so the maximum height is:

feet.

c) Already answered at seconds.

RonL