7. You exert a force on a friend who is holding a 4.0-m-ong rope. Now suppose you exert the sameforce on your friend, but the friend is holding an 8.0-m-long rope. How will this affect the rotationalacceleration?A) It will be quarteredB) It will be halvedC) It will double D) It will quadruple8. The figure shows scale drawings of four objects, each of the same mass and uniform thickness, withthe mass distributed uniformly. Which one has thegreatest moment of inertia when rotated about anaxis perpendicular to the plane of the drawing atpoint P?ABD9. A person sits on a freely spinning lab stool that has no friction in its axe. When this person extendsher arms,A) her moment of inertia increases and her angular speed decreases.B) her moment of inertia decreases and her angular speed increases.C) her moment of inertia increases and her angular speed increases.D) her moment of inertia increases and her angular speed remains the same.10. Which force produces the greatest torque?A) 20N with a lever arm of imC) 10 N with a lever arm of 4mB) 15N with a lever arm of 3mD) 8N with a lever arm of 5m

Answered: Image /qna-images/answer/24168ff8-63cf-4106-bfdc-3b4af7d0de3a.jpg

7. You exert a force on a friend who is holding a 4.0-m-long rope. Now suppose you exert the same force on your friend, but the friend is holding an 8.0-m-ong rope. How will this affect the rotational acceleration? A) It will be quartered B) It will be halved C) It will double D) It wil quadrupie 8. The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which ane has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P? A B 9. A person sits on a freely spinning lab stool that has no friction in its axe. When this person extends her arms, A) her moment of inertia increases and her angular speed decreases. B) her moment of inertia decreases and her angular speed increases. C) her moment of inerta increases and her angular speed increases. D) her moment of inertia increases and her angular speed remains the same. 10. Which force produces the greatest torque? A) 20N with a lever arm of im C) 10 N with a lever arm of 4m B) 15N with a lever arm of 3m D) 8N with a lever arm of 5m

7. You exert a force on a friend who is holding a 4.0-m-long rope. Now suppose you exert the same force on your friend, but the friend is holding an 8.0-m-ong rope. How will this affect the rotational acceleration? A) It will be quartered B) It will be halved C) It will double D) It wil quadrupie 8. The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which ane has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P? A B 9. A person sits on a freely spinning lab stool that has no friction in its axe. When this person extends her arms, A) her moment of inertia increases and her angular speed decreases. B) her moment of inertia decreases and her angular speed increases. C) her moment of inerta increases and her angular speed increases. D) her moment of inertia increases and her angular speed remains the same. 10. Which force produces the greatest torque? A) 20N with a lever arm of im C) 10 N with a lever arm of 4m B) 15N with a lever arm of 3m D) 8N with a lever arm of 5m

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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