Answered: b.) How fast must the bucket move at…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 4CQ: Objects moving along a circular path have a centripetal acceleration provided by a net force...

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6.) A bucket of mass 1.60 kgkg is whirled in a vertical circle of radius 1.45 mm . At the lowest point of its motion the tension in the rope supporting the bucket is 22.0 NN .

a.) Find the speed of the bucket.

Express your answer to three significant figures and include the appropriate units.

v=__________ ___________

b.) How fast must the bucket move at the top of the circle so that the rope does not go slack?

Express your answer to three significant figures and include the appropriate units.

vmin=_______ ____________

7.) Estimate the work you do to mow a lawn 10 mm by 20 mm with a 50-cmcm-wide mower. Assume you push with a force of about 20 NN .

Express your answer to two significant figures and include the appropriate units.

W=____________ ______________

8.) What was the average force exerted by the ball on the glove?

Express your answer to two significant figures and include the appropriate units.

F_onglove= ____________ ____________

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