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August 21, 2014

Homework Help: Precalculus

Posted by Kate on Tuesday, August 9, 2011 at 2:57pm.

A discus is thrown from a height of 3 feet with an initial velocity of 55 ft/s at an angle of 44 with the horizontal. How long will it take for the discus to reach the ground?

I started off with 55cos(44)=40

then I made an equation

40t-16(t)=2.5 seconds?

I feel like I did this wrong because I didn't add 3 feet anywhere

or do I add 3 in to 55cos(44) giving me an answer of 2.6

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