A block is pushed across a floor by a constant force that is applied at downward angle

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A block is pushed across a floor by a constant force that is applied at downward angle θ (Figure). Figure gives the acceleration magnitude a versus a range of values for the coefficient of kinetic friction Ft between block and floor a1?= 3.0m/s2, ?k2?= 0.20, and ?k3= 0.40. What is the value of θ?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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