Answered: 1) Multiple choice question While…

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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Question

1) Multiple choice question

While reading section 6.1 of the book, you learned that angular speed, ?ω rad/s, of a rotating object is related to the linear speed or simply speed, v m/s, with the equation ?=??v=rω , where r is the distance of rotating object from the center of rotation. You also learned that v is tangent to the circular path every moment as shown in the sketch.

The equation ?=??v=rω, tells us that

Picture is below

a) Speed, v, of a rotating object could change even when angular speed, ?ω , is constant

b) Speed, v, of a rotating object remains same if angular speed, ?ω , is the same

c) r must be constant to use this equation

d) All in the list

2)Multiple choice question

According to the sketch of the free body diagram of the car moving on a part of a circular path on a flat road, the centripetal force necessary to keep the car on the path comes from

Free-body diagram is below

a) Static friction force

b) Kinetic friction force

c) Weight of the car

d) Normal force on the car

e) Newton’s first law of motion