1) A 0.30-kg ball is attached at the end of a 0.90-m-long stick. The ball and stick rotatein a horizontal circle. Because of air resistance, a continual push must be exerted onthe stick to keep the ball moving at a constant speed, causing a 0.036-Nm torque.Draw an extended force diagram showing the forces exerted on the ball and stickand use it to determine the magnitude of the resistive force that the air exerts on theball opposite its motion. What assumptions did you make?Ability A14: Is able to construct an extended force diagramNeeds WorkInadequateFD contains no errors invectors or vector placementbut lacks a key feature suchas labels of forces with twosubscripts or the location ofthe intended axis ofrotation.FD is constructed butcontains major errors suchas incorrect or mislabeledforce vectors, forces exertedfrom incorrect locations, ordoes not identify the axis ofrotation.Ability D7: Is able to choose a productive mathematical procedure for solving the problemInadequateNeeds WorkCorrect and completemathematical procedure isdescribed but an error ismade in the calculations. Allunits are consistent.AdequateThe diagram contains noerrors and each force islabeled so that it is clearlyunderstood what each forcerepresents and where theaxis of rotation is.AdequateMathematical procedure isfully consistent with thedesign. All quantities arecalculated correctly withproper units. Final answer ismeaningful.A mathematical procedure isdescribed, but is incorrector incomplete, due to whichthe final answer cannot becalculated. Or units areinconsistent.MissingNo representation isconstructed.MissingMathematical procedure iseither missing, or theequations written down areirrelevant to the design.

Given: The mass of the ball: →m=0.30 Kg Length of the stick: →L=0.90 m Torque applied for the…

1) A 0.30-kg ball is attached at the end of a 0.90-m-long stick. The ball and stick rotate in a horizontal circle. Because of air resistance, a continual push must be exerted on the stick to keep the ball moving at a constant speed, causing a 0.036-Nm torque. Draw an extended force diagram showing the forces exerted on the ball and stick and use it to determine the magnitude of the resistive force that the air exerts on the ball opposite its motion. What assumptions did you make?

1) A 0.30-kg ball is attached at the end of a 0.90-m-long stick. The ball and stick rotate in a horizontal circle. Because of air resistance, a continual push must be exerted on the stick to keep the ball moving at a constant speed, causing a 0.036-Nm torque. Draw an extended force diagram showing the forces exerted on the ball and stick and use it to determine the magnitude of the resistive force that the air exerts on the ball opposite its motion. What assumptions did you make?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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