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Problem 5 - Rigid Body Kinetics (25 pts) The sheave of 400-mm radius has a mass of 50 kg and a radius of gyration of 300 mm. The heave and its 100-kg load are suspended by the cable and the spring, which has a stiffness of 1500 N/m. If the system is released from rest with the spring initially stretched 100 mm, determine the velocity of O after it has dropped 50 mm. 400 mm 100 kg
The moveable pulley shown in the Figure below has a diameter of 113.4 cm . The radius of gyration of the moveable pulley is 345 mm. The weight of the pulley is 549.36 N. A load with a mass of 111111 g is attached to the pulley as illustrated in the Figure. The pulley and the attached load are suspended by a spring and cable as shown. The system is released from rest. The spring is initially stretched 123 mm....
. The 40-kg wheel has a radius of gyration about its center of gravity G of k_G = 250 mm. If it rolls without slipping, determine its angular velocity when it has rotated clockwise 90 degree from the position shown. The spring AB has a stiffness k = 100 N/m and an unstretched length of 500 mm. The wheel is released from rest.
PROBLEM 4 The 30-Kg pendulum has its mass center at G and a radius of gyration about point G of - ,#300 mm . It is initially at rest in the horizontal position(6-0") , where the attached <M spring is unstretched. After applying a constant moment ofM " 10 N.m . determine angular 300 N 2nlositz ω" ? at the instant (-90° ) . Note that: -m ko,, where m is the mass or the pendulum PROBLEM 4 The 30-Kg...
A wheel-axle assembly is attached to a spring as shown in the figure below. The wheel-axel assembly has a mass of m=3 kg and a radius of gyration about the polar axis of kG=75mm. The spring has a stiffness of k=0.5 kN/m ( Note the units!). The system is released from rest with a spring extension of x1=0.2 m. Calculate the maximum angular velocity. Assume friction can be ignored. Provide your answers in rad/s.
2. In the mechanism shown, each of the two wheels has a mass of 30 kg and a centroidal radius of gyration of 100 mm. Each link OB has a mass of 10 kg and may be treated as a slender bar. The 7 - kg collar at B slides on the fixed vertical shaft with negligible friction. The spring has a stiffness k = 30 kN/m and is contacted by the bottom of the collar when the links reach...
2. The grooved drum has mass m 12 kg, radius of gyration ko-210 mm, groove radius r 200 mm and outer radius ro 300 mm. At O, there is a constant frictional moment M 3 Nm opposing rotation of the drum. In the position shown, the cylinder with mass mc 8 kg is descending with speed v0.3 m/s. What is the cylinder's speed after dropping an additional distance d 1.5 m? nm ko me
2. In the mechanism shown, each of the two wheels has a mass of 30 kg and a centroidal radius of gyration of 100 mm. Each link OB has a mass of 10 kg and may be treated as a slender bar. The 7 - kg collar at B slides on the fixed vertical shaft with negligible friction. The spring has a stiffness k = 30 kN/m and is contacted by the bottom of the collar when the links reach...
Picture taken from problem 18-42. The spool has a mass of 20 kg and a radius of gyration of ko= 160 mm. If the 15-kg block A is released from rest, determine the distance block A will have fallen at the instant it reaches a velocity of 1.5 meters/second. 200 mm A
2. The weight of the disk is 30 lb and its radius of gyration equals 0.6 ft. The spring has a stiffness of 2 lb/ft and an unstretched length of 1 ft. Find the velocity of the center G at the instant G moves 3 ft to the left. Assume that the disk is released from rest in the position shown and rolls without slipping. k=2 lb/ft