please include written out explanations to make it easy to understand 2. (ROTATIONAL KINEMATICS) A record with a 30 cm diameter is initially spinning CCWrad/s. At t=0 s the record experiences a(counter-clockwise) with an angular speed of 8constant angular acceleration of -2 rad/s².(a) Compute the time at which the angular displacement of the disk is -4 radians.(b) Determine the magnitude of the radial acceleration for a point at the edge of the recordat t = 5 s.

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2. (ROTATIONAL KINEMATICS) A record with a 30 cm diameter is initially spinning CCW (counter-clockwise) with an angular speed of 8 rad/s. At t=0 s the record experiences a constant angular acceleration of -2 rad/s². (a) Compute the time at which the angular displacement of the disk is -4 radians. (b) Determine the magnitude of the radial acceleration for a point at the edge of the record at t = 5 s.

2. (ROTATIONAL KINEMATICS) A record with a 30 cm diameter is initially spinning CCW (counter-clockwise) with an angular speed of 8 rad/s. At t=0 s the record experiences a constant angular acceleration of -2 rad/s². (a) Compute the time at which the angular displacement of the disk is -4 radians. (b) Determine the magnitude of the radial acceleration for a point at the edge of the record at t = 5 s.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

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Question

please include written out explanations to make it easy to understand

2. (ROTATIONAL KINEMATICS) A record with a 30 cm diameter is initially spinning CCW
rad/s. At t=0 s the record experiences a
(counter-clockwise) with an angular speed of 8
constant angular acceleration of -2 rad/s².
(a) Compute the time at which the angular displacement of the disk is -4 radians.
(b) Determine the magnitude of the radial acceleration for a point at the edge of the record
at t = 5 s.

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