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April 24, 2014

Homework Help: physics

Posted by Anton on Thursday, November 18, 2010 at 10:08am.

A 3.1 kg block has an initial velocity of 15 m/s as it moves 12m on a rough horizontal surface with coefficient of kinetic friction of .23.. ~ then slides up a frictionless incline whose angle is 24 degrees.
A (8 pts) Sketch energy pie charts at points a, band c. (Point c is the maximum height) Be sure to get changes correct. That is, if kinetic energy increases between two points, make that clear. But you won't be able to get the fractions of energy correct at this point.
B. (16 pts) Find how high the block goes up the hill. Be sur~ to, check your units explicitly and show the details of simplification.

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