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March 3, 2015

March 3, 2015

Posted by **Sarah** on Thursday, June 4, 2009 at 8:58pm.

A) timeinair=375ft/Vi*.866=433/Vi

Vi*1/2=1/2 (33ft/sec^2)433/Vi

vi= sqrt (33*433) ft/sec

sqrt of 14289 ft/sec

Vi= 119.5366

The correct answer is 118 what did I do wrong

and how do I solve for B

- Physics -
**Anonymous**, Thursday, June 4, 2009 at 9:48pma.

If you use g=32.2 instead of 33, you should get the right answer.

b. calculate time in air (as in a) with calculated Vi. Divide this by 2 gives the time when the ball reaches the highest point.

Use

S=Vi.sin30.t + g.t^2/2 (g is -32.2 f/s/s

- Physics -
**MathMate**, Thursday, June 4, 2009 at 10:45pmDid you have time to look at the baseball problem?

- Physics -
**Sarah**, Thursday, June 4, 2009 at 10:54pmThe one above ??? I already solved it

- Physics -
**MathMate**, Thursday, June 4, 2009 at 10:59pmExcellent!

- Physics -
**MathMate**, Thursday, June 4, 2009 at 10:59pmSo you are ready for the Tennis problem, or is it solved too?

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