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February 28, 2015

February 28, 2015

Posted by **Anonymous** on Sunday, August 26, 2012 at 12:36am.

Answer after rounding is 7 seconds.

The next question is "If the building in the previous problem is 44 meters high and you throw the ball up at 30 m/s, how high to the nearest meter does it go?"

I don't understand how to figure out what the highest meter is.

- Physics (2nd question) -
**drwls**, Sunday, August 26, 2012 at 9:43amApparently you have already answered question 1. If not, see the "related Question" below.

Question 2:

If the ball starts at a height of Ho = 44 m, if loses the available kinetic energy until it reaches the maximum height Hmax

g*Ho + Vo^2/2 = g*Hmax

(Hmax-Ho)= Vo^2/(2g) = 45.9 m

Hmax = 89.9 m

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