Question

KE7. Figure shows a mechanism. Body 5 is assumed to be homogeneous circular cylinder, and mass of the pulley 4 is uniformly distributed over its rim. The coefficient of sliding friction between bodies and the plane is f 0.1. The coefficient of stiffness of a spring is c. A force F applied to the mechanism depends on the displacement s of the body 1. The mechanism starts motion from rest, and F at the beginning of the motion the spring is unstretched. During the motion the constant moment of resistance M is 4 f acting on the pulley 3. Find the velocity v2 of the body 2 at the instant when s1 0.2 m. Parameters: R 0.3 m, r 0.1 m, and radius of gyration ps : 0.2 m, R,-0.2 m, mi-0 kg. m2-4 kg, m3-0 kg, ma - 6 kg, ms 5 kg, c 300 N/m, 1.5 Nm, F 60(8 +5sı) N. 60

Answer 1

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