The wheel has radius R = 60 cm YA and is free to rotate without friction about a central axle. A force F = 15N is applied to R the wheel as shown, at distance r 20 cm. from the axle. = 50° а. What is the magnitude of the torque corresponding to the force F, calculated about the axle? b. What is the direction of the torque vector? With the wheel starting from rest, this torque is applied constantly. After three revolutions, its final angular speed is wf = 8.0 s-1. What was its angular acceleration a? с.
The wheel has radius R = 60 cm YA and is free to rotate without friction about a central axle. A force F = 15N is applied to R the wheel as shown, at distance r 20 cm. from the axle. = 50° а. What is the magnitude of the torque corresponding to the force F, calculated about the axle? b. What is the direction of the torque vector? With the wheel starting from rest, this torque is applied constantly. After three revolutions, its final angular speed is wf = 8.0 s-1. What was its angular acceleration a? с.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter11: Angular Momentum
Section: Chapter Questions
Problem 77P: The axis of Earth makes a 23.5 angle with a direction perpendicular to the plane of Earth’s orbit....
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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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