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Question
Submitted by JFoey. on Wed, 2012-10-31 22:54
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A ball is thrown straight up with a speed of 30 m/s. How long does it take to reach the...

A ball is thrown straight up with a speed of 30 m/s. How long does it take to reach the maximum height?

Answer
Submitted by shahimermaid on Thu, 2012-11-01 04:44
teacher rated 378 times
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A xxxx is xxxxxx straight up xxxx a speed xx xx xxxx xxx xxxx xxxx xx take xx xxxxx xxx maximum height

 

xxx xxxx is thrown with a speed xxx it xxxxxxx x maximum height xxx xxx at that xxxxx xx it si xxxxx xxx it xx the negative acceleration xxxx xxxxx xx

 xx -g

 

v2 x u2 x xxx

 02 - xxx x x x xxxx x s

 

xxxx /2 x -9.8 x s

 

45.9 x is xxx maximum height

 

v= x + xx

x x 30 x xxx x x

-30/-9.8 =t

 

t x 3.06 xxxxxxx

 


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