A 0.55 kg book slides on ahorizontal table. The kinetic friction force on the book hasmagnitude 1.2 N.
(a) How much work is done on the book by frictionduring a displacement of 9.0 m to the left?
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(b) The book now slides 9.0 m to theright, returning to its starting point. During this second9.0 m displacement, how much work isdone on the book by friction?
J
(c) What is the total work done on the book by friction during thecomplete round trip?
J