Kindly show the COMPLETE STEP-BY-STEP SOLUTION, DON’T DO SHORTCUTS OF SOLUTION, so I can understand the process. I will rate you with “LIKE/UPVOTE," if it is COMPLETE STEP-BY-STEP SOLUTION. If it is INCOMPLETE SOLUTION and there are SHORTCUTS OF SOLUTION, I will rate you with “DISLIKE/DOWNVOTE.” Topics related to the given problem: Dynamics of Rigid Bodies, Kinetics of a Particle, Equation of Motion: Normal and Tangential Coordinates, Kinematics, etc. Thank you for your help. The 3-kg disk D is attached to the end of a cord as shown in Fig. 13–13a.The other end of the cord is attached to a ball-and-socket joint locatedat the center of a platform. If the platform rotates rapidly, and the diskis placed on it and released from rest as shown, determine the time ittakes for the disk to reach a speed great enough to break the cord. Themaximum tension the cord can sustain is 100 N, and the coefficient ofkinetic friction between the disk and the platform is µ̟ = 0.1.Motion ofDplatform1m(a)

given data; ⇒mass of disc (m)=3kg⇒radius of platform (r)=1m⇒coefficient of kinetic friction…

The 3-kg disk D is attached to the end of a cord as shown in Fig. 13–13a. The other end of the cord is attached to a ball-and-socket joint located at the center of a platform. If the platform rotates rapidly, and the disk is placed on it and released from rest as shown, determine the time it takes for the disk to reach a speed great enough to break the cord. The maximum tension the cord can sustain is 100 N, and the coefficient of kinetic friction between the disk and the platform is µ̟ = 0.1. Motion of D platform 1m (a)

The 3-kg disk D is attached to the end of a cord as shown in Fig. 13–13a. The other end of the cord is attached to a ball-and-socket joint located at the center of a platform. If the platform rotates rapidly, and the disk is placed on it and released from rest as shown, determine the time it takes for the disk to reach a speed great enough to break the cord. The maximum tension the cord can sustain is 100 N, and the coefficient of kinetic friction between the disk and the platform is µ̟ = 0.1. Motion of D platform 1m (a)

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.74P

See similar textbooks

Similar questions

The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a) Determine the force P required to pull the roller at a constant speed. (b) What force P would be needed to push the roller at a constant speed?
The contact surface between the 36-lb block and 20-lb homogenous cylinder is frictionless. Can the system be in static equilibrium 0n the rough inclined plane?
The 60-lb plank rests on a frictionless roller at A, and the 20-lb triangular support BD. Both bodies are homogenous. The coefficients of static friction are 0.4 at B and 0.3 at D. Determine the largest force P that can be applied to the plank without initiating motion.
Question 17 The 3-kg disk Dis attached to the end of a cord. The other end is attached to ball and socket joint located at the center of platform. If the platform is rotating rapidly, and the disk is placed on it and released from rest, determine the time it takes for the disk to reach a speed great enough to break the cord. The max tension the cord can sustain is 100 N, and the coefficient of kinetic friction between disk and platform is Pk= 0.1 -- Motion of platfom Question 18 Design of the ski requires knowing the type of forces that will be exerted on the skier and his approximate trajectory. In the case as shown, determine the normal force and acceleration on the 600-N skier the instant he arrives at the end of jump, A, where his velocity is 9 m/s. 15 m Question 19 Packages, each of mass 2-kg, are delivered from a conveyor to a smooth circular ramp with a velocity of vo= 1 m/s. If the effective radius of the ramp is 0.5 m, determine the angle 0= Omax at which each package begins…
Each arm of aporter govern or is 250 mm long The uppe r and ower arms are pivoted at 40mm and 50 mm respectively from axis of rota tion Each ball has mas s Df 5 kg and the sleeve mass is 50kg The friction force on the sleve is 40 N. Determine the range of the speed of governor for extreme radii of rota tion of 125 mm and 150 mm
In a porter governor the mass of the central load is 18 kgand the mass of each ball is 2kg. the top arms (254) mm while the bottom arms are (304) mm long. The friction of the sleeve is 20 N. If the top arms make 45 deg with the axis of rotation in the equilibrium position, find the range of the speed of the governor in that position
All arms of porter governor are 18 cm long and hanged at a distance of 4 cm to axis of rotation. The mass of ball 2 kg, and the mass of sleeve 30 kg. Determine minimum radius of rotation and the friction force at the minimum speed of governor 5 r.p.s. when the upper arms are at an angle of 30°with vertical and the lower arms are at an angle of 25°with vertical.
Object A, mass 12 kg, is attached to a pulley with mass 15 kg and a radius of 0.25 m. The pulley is rotating at 2000 rpm. If object A is to be reduced to half its initial speed, plant By braking the pulley bearings which creates a moment of resistance of 800 N-m. I want to know how far the object will slide down and what is the tension in the rope at that time. 12 kg 0.3 m
Fial I The figure shows a body consist of two segments which are a rod AB and a disk with weights of 4-lb and 11-lb respectively. The body is attched with a spring. The roller 1 ft k = 8 lb/ft Datum at C allows the spring to remain vertical as the rod falls. B A The length of the unstretched spring is 0.85 ft. If the body is released from rest and rotates CW about point B, 1 ft 3 ft determine the following: (Assume the datum at point B) 0.25 ft 1. The potential energy of the spring when the body is horizontal. 2. The potential energy due to gravity when the body is horizontal. 3. The potential energy of the spring when the body is vertical. 4. The potential energy due to gravity when the body is vertical. 5. The angular velocity at the instant the body becomes vertical.
C14-2. As the large ring rotates, the operator can apply a breaking mechanism that binds the cars to the ring, which then allows the cars to rotate with the ring. Assuming the passengers are not belted into the cars, determine the smallest speed of the ring (cars) so that no passenger will fall out. When should the operator release the brake so that the cars can achieve their greatest speed as they slide freely on the ring? Estimate the greatest normal force of the seat on a passenger when this speed is reached. Use numerical values to explain your answer.
The 6-kg bar is released from rest while in the position shown and its end rollers travel in the vertical-plane slot shown. If the speed of roller A is 3.42 m/s as it passes point C, determine the work done by friction on the system over this portion of the motion. The bar has a length /=775 mm. %3D Assume 0 = 24°. C (B Answer: Ufriction i N-m
The mass center of the rear-engine 3120-lb car is at G. Determine the normal forces NA and NB exerted by the road on the front and rear pairs of tires for the conditions of (a) being stationary and (b) braking from a forward velocity v with all wheels locked. The coefficient of kinetic friction is 0.95 at all tire/road interfaces. Express all answers in terms of pounds and as percentages of the vehicle weight. Answers: (a) While stationary: NA = NB = NA= i NB= i (b) While braking: 72"50" i i B 121" lb = lb = lb = lb = i i i i Jeda % of the total weight % of the total weight % of the total weight % of the total weight