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August 23, 2014

August 23, 2014

Posted by **Anonymous** on Friday, November 30, 2012 at 12:31am.

- Physics -
**drwls**, Friday, November 30, 2012 at 2:30amYou have been given more information than you need to solve the problem. The initial velocity Vo is enough to compute the answer.

It rises until the potential energy equals the initial kinetic energy.

M g H = (1/2)M Vo^2

H = Vo^2/(2 g) is the maximum heigh

= 10.9 m

If you use the time in the air (3 s) to get the answer,

1.5 seconds is the time spent rising.

H = (1/2)*9.8*(1.5)^2 = 11.0 m

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