PLS HELp 9.A 1.0-kg and a 2.0-kg mass are each tied to the ends of identical strings and whirled around incircles that describe a horizontal plane. The larger mass moves with a speed of 3.2 m/s. For thetension in the two strings to be the same, the smaller mass must be moving with a speed ofa. 6.4 m/sb. 4.5 m/sd. 2.3 m/se.1.6 m/s& 3.2 m/s10. An object sits at rest on a ramp. As the angle of inclination of the ramp increases, the objectsuddenly begins to slide. Which of the following explanations best accounts for the object'smovement?a. The coefficient of static friction has decreased sufficiently.b. The force of gravity acting on the object has increased sufficiently.C.The component of gravity along the ramp has increased sufficiently.d. The friction has decreased sufficiently while the normal force has remained unchanged.e.The normal force has increased sufficiently.

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Answered: 9. A 1.0-kg and a 2.0-kg mass are each…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter39: Relativity

Section: Chapter Questions

Problem 1PQ

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