AP Physics 1: Algebra-Based 5.6 A Describe the Conditions Under Which a Systems Angular Velocity Changes Questions

Apply net torque and rotational inertia to explain and calculate angular acceleration and the resulting changes in a rigid system’s angular velocity.

Exam points

apply τnet = Iα to calculate net torque or angular acceleration for a rigid system
combine angular acceleration with elapsed time to find angular speed, stopping or reversal
use torque and angular-velocity directions to sketch or interpret rotational motion graphs
compare angular accelerations when the applied torque or rotational inertia changes
combine linear and rotational equations to solve rolling and massive-pulley acceleration or tension

[Maximum number: 2]

(12 points, suggested time 25 minutes)
The left end of a uniform beam of mass M and length L is attached to a wall by a hinge, as shown in Figure 1. One end of a string with negligible mass is attached to the right end of the beam. The other end of the string is attached to the wall above the hinge at Point 1. The beam remains horizontal. The hinge exerts a force on the beam of magnitude $F_{\mathrm{H}}$ , and the angle between the beam and the string is $\theta=\theta_{1}$ .

The string is cut, and the beam begins to rotate about the hinge with negligible friction. On the following axes, sketch the angular speed of the beam as a function of time for the time interval while the beam falls but before the beam becomes vertical.

Figure for Question AP Physics 1: Algebra-Based 5.6 A Describe the Conditions Under Which a Systems Angular Velocity Changes Questions question 1 — AP Physics 1: Algebra-Based

All question bank results loaded

AP Physics 1: Algebra-Based 5.6 A Describe the Conditions Under Which a Systems Angular Velocity Changes Questions question 1