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December 20, 2014

December 20, 2014

Posted by **Don** on Wednesday, September 28, 2011 at 9:25pm.

- Physic -
**Can**, Sunday, April 13, 2014 at 3:32am(a) Friction= u * Normal

Friction= 0.25 * Normal

Normal=15*sin(40) + mg = 43.94

Friction= 0.25 * 43.94 = 10.985N

(b) 19*cos(40) - 10.985 = 0.5 N

F =ma

0.5N = 3.5kg * a

a = 0.14 m/s^2

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