2. In the mechanism shown, each of the two wheels has a mass of 30 kg...
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 7-kg collar slides with negligible friction on the fired vertical shaft When the collar is relessed from rest at the bottom posyon shown it moves up the shaft under the action of the constant force F= 200 450 mm N applied to the cable Calculate the stiffness which the spring must have if its maximum compression is limited to 75 mm The position of the small pulley at Bis fixed
17-87. The tractor has a mass of 900 kg, excluding the rear wheels. The mass center is located at G. Each of the rear wheels has a mass of 50 kg and a radius of gyration A-0.7 m. If the tractor coasts freely down the 10° slope, determine its velocity when -5s starting from rest. For the calculation, neglect the mass of the front wheels B and the effects of friction at these wheels. The rear wheels roll without slipping...
NO QUESTIONS DURING THE EXAM! e collar of negligible size has a mass of 0.25 kg and is attached to a spring having an unstretched and travels along (25 points) Th 9) length of 100 mm and an elastic constant of k 150 N/m. If the collar is released from rest at a the smooth guide as shown in the figure, determine its speed just before it strikes B Take g 10 m/s? 400 mm 200 mm NO QUESTIONS DURING...
The car shown has a mass of 2,000 kg and a center of mass at G. Determine the car’s acceleration if the “driving” wheels in the back are always slipping, whereas the front wheels freely rotate. The coefficient of kinetic friction between the wheels and the road is 0.25. 0.3 m " 1.25 m 0.75 m
Chapter 6, Problem 6/049 The 2.4-kg collar at C has an outer diameter of 85 mm and is press fitted to the light 60-mm-diameter shaft. Each spoke has a mass of 2.0 kg and carries a 3.6-kg sphere with a radius of 50 mm attached to its end. The pulley at D has a mass of 6.8 kg with a centroidal radius of gyration of 90 mm. If a tension T 19 N is applied to the end of the...
The trailer with its load has a mass of 150 kg and a center of mass at G. If it is subjected to a horizontal force of P = 600N, determine the normal force on the pair of wheels (in Newtons) at A. The wheel are free to roll without friction and have a negligible mass. Please answer to four significant figures. Thank you a lot! :) The trailer with its load has a mass of 150 kg and a...
Each of the double pulleys shown has a centroidal mass moment of inertia of 0.25 kg-m2, an inner radius of 100 mm, and an outer radius of 150 mm. The mass m = 15.6 kg and the bearing friction is neglected.
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.
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...