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August 23, 2014

August 23, 2014

Posted by **susan** on Thursday, October 18, 2012 at 6:31pm.

- physics -
**bobpursley**, Thursday, October 18, 2012 at 7:50pma. KE lost=GPE gained

1/2 m v^2=mgh solve for h

b. forceresistance=mass*accelrationfriction

so

1/2 m Vi^2=mgh-frictionwork

1/2 m Vi^2=mgh-force*h

solve for force knowing Vi, and the new h.

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