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Posted by **john** on Friday, November 26, 2010 at 8:37pm.

How fast was it rolling on the desk before it fell off?

- physics -
**drwls**, Friday, November 26, 2010 at 10:22pmCalculate the time it takes to fall H = 1.3 m.

t = sqrt (2H/g) = 0.515 s

Vx = 0.74 m/0.515s = ___

Vx does not change as the ball falls to the floor

- physics -
**norma**, Sunday, October 23, 2011 at 6:00pm1.44

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