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PLEASE NOTE: The person who "answered" this question last night did a terrible job. He didn't read my question asking for TWO different kinds of solution, he didn't provide a diagram and he wasted 12 hours of the time I had to get an answer to this question.
So, here it is again (and whoever answered last night -- I won't name names) stay off the queue this round. Your answer sucked!
a golf ball with an inital angle of 34 degress lands exactly 240 m down the range on a level course.
Q1: neglecting air resistance, what initial speed would achieve this result?
Q2: using this speed, find the max height reached by the ball.
Expert: Please answer this question using the projectile formulas that employ built-in trig functions and . . .
ALSO answer the question JUST USING using x and y vectors.
Provide diagrams. Thx
Submitted: 70 days and 12 hours ago.
Category: Homework
Value: $20
Status: CLOSED
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Expert:
RRJha
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100.0 %
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Answered:
9/13/2009
Graduate Student
Homework Expert
70 days and 9 hours ago.
Reply
excellent explanation. just one (fairly stupid) question: where did the formulas you used in the first part of the answer come from? I'm only familiar with trig formulas in physics like: y = (v initial)(sin theta)(t) - 1/2 (gt^2).
Thx
Tom
Posted by
RRJha
70 days and 9 hours ago.
Info Request
Those formula are direct result of the one you gave and few others.
For details, read here http://en.wikipedia.org/wiki/Range_of_a_projectile
70 days and 9 hours ago.
Reply
Perfect. Thanks so much
Posted by
RRJha
70 days and 9 hours ago.
Info Request
It was a pleasure to help.
If you have any other physics questions, I'd be glad to help you. You can ask for me by putting my name before your questions.
Also, thanks for bonus.
Have a good day !
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