Problem 2. A Point A of the rod slides down the inclined plane while point B is forced to slide horizontally. The rod has length 2 m and a mass of 1 kg. If the rod is released from rest in 300 G the position shown, find the angular velocity of the rod when it has fallen to a horizontal orientation. Just before the rod hits the ground, find the normal forces at ends A 60° 300 and B. Ans: a = 5.2717 rad/s² ccw, Na = 2.7811 N, NB = 3.1478 N

Problem 2. A Point A of the rod slides down the inclined plane while point B is forced to slide horizontally. The rod has length 2 m and a mass of 1 kg. If the rod is released from rest in 300 G the position shown, find the angular velocity of the rod when it has fallen to a horizontal orientation. Just before the rod hits the ground, find the normal forces at ends A 60° 300 and B. Ans: a = 5.2717 rad/s² ccw, Na = 2.7811 N, NB = 3.1478 N

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 121CP: The angular acceleration of a rotating rigid body is given by =(2.0-3.0t)rad/s2 . If the body starts...

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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

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Problem 2.
Point A of the rod slides down the inclined plane while
A
point B is forced to slide horizontally. The rod has length 2
m and a mass of 1 kg. If the rod is released from rest in
the position shown, find the angular velocity of the rod
300
when it has fallen to a horizontal orientation. Just before
the rod hits the ground, find the normal forces at ends A
60°
30°
and B.
Ans: a = 5.2717 rad/s? ccw, NA = 2.7811 N, NB = 3.1478 N
%D

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