1. Figure on right shows, four pulleys connected by two belts. Pulley A (radius 20 cm) is the main drive pulley, and it rotates at 20 rad/s. Pulley B Belt 1 B' Drive (radius 10 cm) is connected by belt 1 to pulley A. pulley Pulley B'(radius 5 cm) is concentric with pulley B and is rigidly attached to it. Pulley C (radius 30 cm) is Belt 2 connected by belt 2 to pulley B'. Answer the following. The angular speed of wheel A is increased from rest at a constant rate of 2.0 rad/s?. Find the time needed for wheel C to reach an angular speed of а. 100 rev/min, assuming the belt does not slip) b. Find the ratio of the number of revolutions made the by C and B' during this time period. How would the ratio of number of revolutions compare to the ratio of radius of C to B'. (show your work in detail)

1. Figure on right shows, four pulleys connected by two belts. Pulley A (radius 20 cm) is the main drive pulley, and it rotates at 20 rad/s. Pulley B Belt 1 B' Drive (radius 10 cm) is connected by belt 1 to pulley A. pulley Pulley B'(radius 5 cm) is concentric with pulley B and is rigidly attached to it. Pulley C (radius 30 cm) is Belt 2 connected by belt 2 to pulley B'. Answer the following. The angular speed of wheel A is increased from rest at a constant rate of 2.0 rad/s?. Find the time needed for wheel C to reach an angular speed of а. 100 rev/min, assuming the belt does not slip) b. Find the ratio of the number of revolutions made the by C and B' during this time period. How would the ratio of number of revolutions compare to the ratio of radius of C to B'. (show your work in detail)

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.

Question

1.
Figure on right shows, four pulleys
connected by two belts. Pulley A (radius 20 cm) is the
main drive pulley, and it rotates at 20 rad/s. Pulley B
Belt 1
B'
(radius 10 cm) is connected by belt 1 to pulley A.
Drive
pulley
Pulley B'(radius 5 cm) is concentric with pulley B and
is rigidly attached to it. Pulley C (radius 30 cm) is
Belt 2
connected by belt 2 to pulley B'. Answer the
following.
The angular speed of wheel A is increased from rest at a constant rate
of 2.0 rad/s². Find the time needed for wheel C to reach an angular speed of
a.
100 rev/min, assuming the belt does not slip)
b.
Find the ratio of the number of revolutions made the by C and B'
during this time period. How would the ratio of number of revolutions
compare to the ratio of radius of C to B'. (show your work in detail)

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