A block of mass m = 342 g is dragged with a string across arough horizontal table. The string tension is T = 3.43 N, andit pulls upward at an angle of = 43.0° with the horizontal.At one particular instant, the block is moving at a speed ofv = 6.50 m/s. The coefficient of kinetic friction between theblock and the table is μ = 0.609.What is the power Pr supplied to the block by thestring tension?Pr =P₁ =15.05What is the power Pf supplied by the force of friction?IncorrectOO3.71IncorrectAt this instant, the block's speed isincreasing.O decreasing.constant.O impossible to determine.WWVm7< FeedbackⒸ Macmillan LearningYou have incorrectly calculated Pr.When a force Facts on an objectmoving with a velocity 7, the powersupplied by the force is given byP= F. Fu cos 0where is the relative angle between Fand 7.Check that the units of your valuesresult in watts for the power.

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A block of mass m = 342 g is dragged with a string across a rough horizontal table. The string tension is T = 3.43 N, and it pulls upward at an angle of = 43.0° with the horizontal. At one particular instant, the block is moving at a speed of v = 6.50 m/s. The coefficient of kinetic friction between the block and the table is μ = 0.609. What is the power Pr supplied to the block by the string tension? Pr = 15.05 Pf= Incorrect What is the power P supplied by the force of friction? 3.71 Incorrect At this instant, the block's speed is increasing. decreasing. constant. impossible to determine. W W 12 m $ 1 Macmillan Learning

A block of mass m = 342 g is dragged with a string across a rough horizontal table. The string tension is T = 3.43 N, and it pulls upward at an angle of = 43.0° with the horizontal. At one particular instant, the block is moving at a speed of v = 6.50 m/s. The coefficient of kinetic friction between the block and the table is μ = 0.609. What is the power Pr supplied to the block by the string tension? Pr = 15.05 Pf= Incorrect What is the power P supplied by the force of friction? 3.71 Incorrect At this instant, the block's speed is increasing. decreasing. constant. impossible to determine. W W 12 m $ 1 Macmillan Learning

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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