A puck of mass m = 68.0 g and radius r = 4.20 cm glides across...

 

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A puck of mass m₁ = 68.0 g and radius r = 4.20 cm glides across an air table at a speed of 1.50 m/s as shown in Figure a. It makes a glancing collision with a second puck of radius r26.00 cm and mass my 115 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 (Figure b). (a) What is the magnitude of the angular momentum of the system relative to the center of mass? kg m2/s (b) What is the angular speed about the center of mass? 13.586 X rad/s A puck of mass m₁ = 68.0 g and radius r = 4.20 cm glides across an air table at a speed of 1.50 m/s as shown in Figure a. It makes a glancing collision with a second puck of radius r26.00 cm and mass my 115 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 (Figure b). (a) What is the magnitude of the angular momentum of the system relative to the center of mass? kg m2/s (b) What is the angular speed about the center of mass? 13.586 X rad/s

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a First we need to calculate the initial angular momentum of the system before the collision The ini... View the full answer