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October 25, 2014

October 25, 2014

Posted by **Hannah** on Wednesday, June 20, 2012 at 6:13pm.

1) What is the ball's range?

R= V0^2 sin Q / g Is this the correct equation to use?

- Physics(Please check, thanks) -
**bobpursley**, Wednesday, June 20, 2012 at 6:30pmI am not a believer in "equations". Formulas are to be reserved for babies.

How far does it go?

distance=horizontalvelocity*timeinair

=25cos40*timinair.

So what is time in air?

hf=hi+Vv*time-1/2 g t^2

0=0+25sin40*t-4.9t^2

t= 25sin40/4.9

so,

distance= 625*sin40*cos40/4.9

check my solution.

So, you do not have the correct formula.

- Physics(Please check, thanks) -
**Hannah**, Wednesday, June 20, 2012 at 7:18pmWhere did you get 625 and 4.9?

- Physics(Please check, thanks) -
**Hannah**, Wednesday, June 20, 2012 at 7:35pmLooking through my textbook I found what it was that my teacher said to use.

R= Vo^2 Sin 2Q / g

So I guess I just have to plug in the numbers; Vo is 25^2 and Q is 40. Correct?

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