Homework Help: Math

Posted by Kyle on Sunday, February 4, 2007 at 1:06pm.

A golfer hits a ball off the ground with an initial velocity of 200 ft/s at an angle of 23 degrees. The green is 750 feet away. Will the shot make it to the green? State by how much it makes or misses the green.

What is the vertical velocity?
200*sin23. ANSWER
So how long will it stay in the air?
finalvelocityvertical= initialvert - g*time g= 32ft/s^2
Here, final will be the negative of the initial. solve for time in air.

Finally:
Horizontal distance= timeinair*initialhorizontalvelcoity
where initialhorizontalvelocity is 200cos23.

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