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2. Physics 100 Lab Rotational Motion and Gravitation PART A: Exploring Rotational Motion Consider a standard wall clock, with an hour hand, a minute hand, and a second hand, as shown below. All questions in this part refer to this situation. You may assume that the clock is about 12in (30cm) wide. 11 12 1. Through how many degrees does the second hand move every second? 10, 3 2. Through how many degrees does the minute hand move every second? 4. 3. (a) Through how many radians does the second hand move every second? There are 2n radians in a circle. (b) What is the angular speed of the second hand in radians/second? 4. A bug is crawling very slowly along the second hand. (a) Where would the tangential speed of the bug be the largest? Explain. (b) How fast is the bug moving when it is moving its fastest? Explain. (c) Is it possible for the bug to remain at rest while clinging to the second hand? Explain. 5. How does the angular speed of the hour hand compare to the angular speed of someone standing on the Earth (as it spins on its axis)? Explain. 6. How does the angular speed of someone standing on the Earth (as it spins) compare to the angular speed of the Earth traveling around the Sun? Explain.

2. Physics 100 Lab Rotational Motion and Gravitation PART A: Exploring Rotational Motion Consider a standard wall clock, with an hour hand, a minute hand, and a second hand, as shown below. All questions in this part refer to this situation. You may assume that the clock is about 12in (30cm) wide. 11 12 1. Through how many degrees does the second hand move every second? 10, 3 2. Through how many degrees does the minute hand move every second? 4. 3. (a) Through how many radians does the second hand move every second? There are 2n radians in a circle. (b) What is the angular speed of the second hand in radians/second? 4. A bug is crawling very slowly along the second hand. (a) Where would the tangential speed of the bug be the largest? Explain. (b) How fast is the bug moving when it is moving its fastest? Explain. (c) Is it possible for the bug to remain at rest while clinging to the second hand? Explain. 5. How does the angular speed of the hour hand compare to the angular speed of someone standing on the Earth (as it spins on its axis)? Explain. 6. How does the angular speed of someone standing on the Earth (as it spins) compare to the angular speed of the Earth traveling around the Sun? Explain.

College Physics
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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4(b) How fast is the bug moving when it is moving its fastest? Explain.

2. 90 Physics 100 Lab Rotational Motion and Gravitation PART A: Exploring Rotational Motion Consider a standard wall clock, with an hour hand, a minute hand, and a second hand, as shown below. All questions in this part refer to this situation. You may assume that the clock is about 12in (30cm) wide. 1. Through how many degrees does the second hand move every second? 11 12 10. 2. Through how many degrees đoes the minute hand move 3 every second? 3. (a) Through how many radians does the second hand move every second? There are 2n radians in a circle. 4. (b) What is the angular speed of the second hand in radians/second? 4. A bug is crawling very slowly along the second hand. (a) Where would the tangential speed of the bug be the largest? Explain. (b) How fast is the bug moving when it is moving its fastest? Explain. (c) Is it possible for the bug to remain at rest while clinging to the second hand? Explain. 5. How does the angular speed of the hour hand compare to the angular speed of someone standing on the Earth (as it spins on its axis)? Explain. 6. How does the angular speed of someone standing on the Earth (as it spins) compare to the angular speed of the Earth traveling around the Sun? Explain.
Transcribed Image Text:2. 90 Physics 100 Lab Rotational Motion and Gravitation PART A: Exploring Rotational Motion Consider a standard wall clock, with an hour hand, a minute hand, and a second hand, as shown below. All questions in this part refer to this situation. You may assume that the clock is about 12in (30cm) wide. 1. Through how many degrees does the second hand move every second? 11 12 10. 2. Through how many degrees đoes the minute hand move 3 every second? 3. (a) Through how many radians does the second hand move every second? There are 2n radians in a circle. 4. (b) What is the angular speed of the second hand in radians/second? 4. A bug is crawling very slowly along the second hand. (a) Where would the tangential speed of the bug be the largest? Explain. (b) How fast is the bug moving when it is moving its fastest? Explain. (c) Is it possible for the bug to remain at rest while clinging to the second hand? Explain. 5. How does the angular speed of the hour hand compare to the angular speed of someone standing on the Earth (as it spins on its axis)? Explain. 6. How does the angular speed of someone standing on the Earth (as it spins) compare to the angular speed of the Earth traveling around the Sun? Explain.
Expert Solution
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We have clock of total width d=30 cm so the radius or size of a hand R=d/2=30/2=15 cm. Also we know that the second hand covers 360o or 2π radians in 60 s.

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