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October 22, 2014

October 22, 2014

Posted by **trigger** on Wednesday, December 10, 2008 at 10:43am.

13 m s–1. can your answer be given to an appropriate number of significant figures and include the correct SI units.

thx trigger.

- maths -
**drwls**, Wednesday, December 10, 2008 at 11:01am28.6 g is M = 0.0286 kg. The formula for KE is (1/2) M V^2. V = 13 m/s

(0.5)(0.0286)(13)^2 = 2.4167 J

That should be rounned to two significant figures (2.4 J), since the speed has only two.

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