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December 17, 2014

December 17, 2014

Posted by **Krista** on Thursday, March 15, 2012 at 12:36pm.

At the same constant acceleration, how many revolutions do the wheels make before stopping if your initial speed is twice as high?

- Physics -
**bobpursley**, Thursday, March 15, 2012 at 12:41pmwf^2=wi^2+2A*displacement

A= -wi^2/2(1.5rev)

if initial speed is the doubled, then w^2 term in the numerator is x4, so rev must be x4 to keep A constant.

so 4x1.5=6rev

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