A 15.0-kg block is dragged over a rough, horizontal surface by a 70.0-N force acting at 20.0
Question:
(a) The 70-N force,
(b) The normal force, and
(c) The gravitational force.
(d) What is the increase in internal energy of the block-surface system due to friction?
(e) Find the total change in the block’s kinetic energy.
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Fymay n700 N sin 200147 N0 n 123 N fk kn0300123 N 369 N a ...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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