Variable Description Value R Feeder radius 0.19m 10 Feeder inertia 0.12kg-m² A circular bird feeder 19 cm in radius has rotational inertia 0.12kg-m². The feeder is suspended horizontally by a thin wire through the middle, and is spinning slowly at 6.1 rpm. A 140 g bird lands on the rim of the feeder, coming in tangent to the rim at 1.1 m/s in a direction opposite the feeder's rotation. Assume the feeder-bird system is isolated; no pFBD or IST is required for this problem. Please put your answers in terms of the variables listed. w₂ Initial angular velocity m Bird mass 6.1rpm (0.639rad/s) 140g 1.1m/s Bird initial speed Laura Bird initial angular momentum System final inertia Lafter wy Final angular velocity Treat the bird as a point-particle, and define the feeder's initial rotation direction to be positive. Write an expression in terms of given variables for the bird's angular momentum immediately before contact with the feeder about the feeder's axis of rotation Lbird in terms of the variables above. Lbird a ß HOME 000 00€ e g 1^4 1 h i (1) 7 8 9 5 6 1 2 3 0 NO BACKSPACE Io Lafter m P END CLEAR R t TO Submit Hint Feedback I give up! Determine the system moment of inertia after the bird lands about the feeder's axis of rotation after in terms of the variables above. Determine the numerical value for the moment of inertia of the feeder-bird system in kg-m² Assume the feeder-bird system is isolated. Write an expression for the rotation rate after the bird lands in terms of the variables above. What is the numerical value for the rotation rate coin rad/s?
Variable Description Value R Feeder radius 0.19m 10 Feeder inertia 0.12kg-m² A circular bird feeder 19 cm in radius has rotational inertia 0.12kg-m². The feeder is suspended horizontally by a thin wire through the middle, and is spinning slowly at 6.1 rpm. A 140 g bird lands on the rim of the feeder, coming in tangent to the rim at 1.1 m/s in a direction opposite the feeder's rotation. Assume the feeder-bird system is isolated; no pFBD or IST is required for this problem. Please put your answers in terms of the variables listed. w₂ Initial angular velocity m Bird mass 6.1rpm (0.639rad/s) 140g 1.1m/s Bird initial speed Laura Bird initial angular momentum System final inertia Lafter wy Final angular velocity Treat the bird as a point-particle, and define the feeder's initial rotation direction to be positive. Write an expression in terms of given variables for the bird's angular momentum immediately before contact with the feeder about the feeder's axis of rotation Lbird in terms of the variables above. Lbird a ß HOME 000 00€ e g 1^4 1 h i (1) 7 8 9 5 6 1 2 3 0 NO BACKSPACE Io Lafter m P END CLEAR R t TO Submit Hint Feedback I give up! Determine the system moment of inertia after the bird lands about the feeder's axis of rotation after in terms of the variables above. Determine the numerical value for the moment of inertia of the feeder-bird system in kg-m² Assume the feeder-bird system is isolated. Write an expression for the rotation rate after the bird lands in terms of the variables above. What is the numerical value for the rotation rate coin rad/s?
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