The rod AB has a mass of 20 kg,the mass of the piston A and B are both 5kg. Piston B is attached to a spring of constant k = 1200 N/m. The spring is un-stretched when θ = 0. If the rod is released from rest when θ = 45° Please find÷ (1) the moment inertia of the rod AB about its mass center G (2)The angular velocity of rod AB at θ = 0° (3)the velocity of piston A at θ = 0° (4) the velocity of Piston B at θ = 0° (hint: regard the piston A, B, rod as a system, during the motion, except the spring, the weight of rod AB, the weight of piston B also does work). g = 9.8 m/s2

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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The rod AB has a mass of 20 kg,the mass of the piston A and B are both 5kg. Piston B is attached to a spring of constant k = 1200 N/m. The spring is un-stretched when θ = 0. If the rod is released from rest when
θ = 45°

Please find÷

(1) the moment inertia of the rod AB about its mass center G

(2)The angular velocity of rod AB at θ = 0°

(3)the velocity of piston A at θ = 0°

(4) the velocity of Piston B at θ = 0°

(hint: regard the piston A, B, rod as a system, during the motion, except the spring, the weight of rod AB, the weight of piston
B also does work). g = 9.8 m/s2

A
0.2 m
↑ Ꮎ
G
0.2 m
wwwww
k = 1200 N/m
Transcribed Image Text:A 0.2 m ↑ Ꮎ G 0.2 m wwwww k = 1200 N/m
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