Question 2 of 15 View Policies Current Attempt in Progress The figure shows a device that can be used to measure the speed of a bullet. The device consists of two rotating disks, separated by a distance of d = 0.765 m, and rotating with an angular speed of 102 rad/s. The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is 0 = 0.387 rad. From these data, determine the speed of the bullet. Bullet Motor Number i Units eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer

Question 2 of 15 View Policies Current Attempt in Progress The figure shows a device that can be used to measure the speed of a bullet. The device consists of two rotating disks, separated by a distance of d = 0.765 m, and rotating with an angular speed of 102 rad/s. The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is 0 = 0.387 rad. From these data, determine the speed of the bullet. Bullet Motor Number i Units eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer

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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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

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The figure shows a device that can be used to measure the speed of a bullet. The device consists of two rotating disks, separated by a
distance of d = 0.765 m, and rotating with an angular speed of 102 rad/s. The bullet first passes through the left disk and then
through the right disk. It is found that the angular displacement between the two bullet holes is = 0.387 rad. From these data,
determine the speed of the bullet.
Bullet
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Because 2? rad = 1 rev, the angular displacement in part (b) corresponds to 2.23 rev. In general, dividing the number of radians by 6 gives a good approximation to the number of revolutions, because 2? ~ 6.QUESTION If the angular acceleration were doubled for the same duration, by what factor would the angular displacement change? PRACTICE IT Use the worked example above to help you solve this problem. A compact disc rotates from rest up to an angular speed of 34.0 rad/s in a time of 0.889 s. (a) What is the angular acceleration of the disc, assuming the angular acceleration is uniform? rad/s2(b) Through what angle does the disc turn while coming up to speed? rad(c) If the radius of the disc is 4.45 cm, find the tangential speed of a microbe riding on the rim of the disc. m/s(d) What is the magnitude of the tangential acceleration of the microbe at the given time? m/s2 EXERCISEHINTS: GETTING STARTED | I'M STUCK! Use the values from PRACTICE IT to help you work this exercise.…
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s and Due Dates > Sapling Homework#10 O Resources K Give Up? E Feedback Resume O Attempt 3 A solid 0.4750 kg ball rolls without slipping down a track toward a vertical loop of radius R = 0.7350 m. What minimum translational speed vmin must the ball have when it is a height H = 1.111 m above the bottom of the loop in order to complete the loop without falling off the track? H Assume that the radius of the ball itself is much smaller than the loop radius R. Useg = 9.810 m/s² for the acceleration due to gravity. Figure is not to scale. 5.177 m/s Umin = Incorrect |help terms of use contact us about us careers privacy policy 8:34 PM 11/15/2020