Unformatted text preview: eglect drag.) A.
B.
C.
D. more than 20 cm less than 20 cm 20 cm There’s not enough informa>on E. I’m torn between two answers Non conserva>ve forces • Work done by non conserva>ve forces – Zero if perpendicular to the displacement – Non zero otherwise – Nega>ve for a fric>onal force Macroscopic Work done by Fric>on f f “Heat” is just the kine>c energy of the atoms! A block slides down a ramp. If fric>on is signiﬁcant, in which case is the ﬁnal velocity largest? (Assume same µK in both cases) A B A) A B) B C) Neither. They are the same A block slides down a ramp. If fric>on is signiﬁcant, in which case is the...
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This note was uploaded on 03/26/2014 for the course PHYSICS 101 taught by Professor Bennet during the Fall '08 term at Johns Hopkins.
 Fall '08
 bennet
 Physics, Work

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