A puck of mass m = 80.0 g and radius r = 4.00 cm glides across an air table at a speed v = 1.5 m/s. It makes a glancing collision with a second puck of radius R = 6.00 cm and mass M = 120 g (initially at rest) such that their rims just touch. Because their rims are coated with instant-acting glue, the pucks stick together and rotate after the collision. a) What is the angular momentum of the system relative to the center of mass? b) What is the angular speed about the center of mass? (a: 7.2E-3 kgm³/s, b: 9.47 rad/s)

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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A puck of mass m = 80.0 g and radius r= 4.00 cm glides across an air table at a speed v = 1.5 m/s. It
makes a glancing collision with a second puck of radius R = 6.00 cm and mass M = 120 g (initially at
rest) such that their rims just touch. Because their rims are coated with instant-acting glue, the pucks
stick together and rotate after the collision. a) What is the angular momentum of the system relative to
the center of mass? b) What is the angular speed about the center of mass? (a: 7.2E-3 kgm/s, b: 9.47
rad/s)
Transcribed Image Text:A puck of mass m = 80.0 g and radius r= 4.00 cm glides across an air table at a speed v = 1.5 m/s. It makes a glancing collision with a second puck of radius R = 6.00 cm and mass M = 120 g (initially at rest) such that their rims just touch. Because their rims are coated with instant-acting glue, the pucks stick together and rotate after the collision. a) What is the angular momentum of the system relative to the center of mass? b) What is the angular speed about the center of mass? (a: 7.2E-3 kgm/s, b: 9.47 rad/s)
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