Towards Sustainability Strategy in Eger
The creation of the Platform (Hub) aims to strengthen vibrant, pluralistic civil society in the Carpathian Region by fostering cooperation among organizations working with grassroots and vulnerable groups. Goals include coordinating CSOs, amplifying local/regional impact, and innovating solutions to serve communities effectively. The Platform serves as an inter-regional network connected by shared geography, history, culture, and socio-economic challenges. Common elements such as Carpathian nature, shared history, and socio-economic disparities form the basis for cooperation. Challenges faced by societies include social disparities, ethnic tensions, governmental corruption, lack of accountability, and growing extremism. The Platform seeks to address these challenges and promote civic engagement, social solidarity, and democratic principles.
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Presentation Transcript
Kinetics of Particle Lecture 8: Tuesday, 9/15/15 Today s Objective Kinetics of rectilinear motion
What is Kinetics? Kinetics is the study of the relations between unbalanced forces and the resulting changes in motion. Solution Methods for kinetics problems: (A) direct application of Newton's second law (called the force-mass-acceleration method), (B) use of work and energy principles, and (C) solution by impulse and momentum methods
A. Application of Newtons Second Law Newton s second law equation: F = ma
Equation of Motion Types of problems: Unconstrained motion Constrained motion Rectilinear motion Curvilinear motion
Rectilinear Motion Motion along a straight line
Free Body and Inertia Body Diagrams Problem 3/1 : The 50-kg crate is projected along the floor with an initial speed of 7 m/s at x = 0. The coefficient of kinetic friction is 0.40. Calculate the time required for the crate to come to rest and the corresponding distance x travelled.
Problem 3/35 Given: The nonlinear spring has a tensile force-deflection relationship given by: , where x is in meters and is in newtons. Determine the acceleration of the 6-kg block if it is released from rest at x = 100 mm
Kinetics of Particle Curvilinear Motion Lecture 9: Thursday, 9/17/15 Today s Objective Kinetics of Curvilinear motion
Kinetics of a Particle Curvilinear Motion: 1. Normal and Tangential (n-t) coordinates
Curvilinear Motion Curvilinear Motion: 2. Polar (r, ?) coordinates
Problem 3/50 The 4-oz slider has a speed v = 3 ft/s as it passes point A of the smooth guide, which lies in a horizontal plane. Determine the magnitude R of the force which the guide exerts on the slider. a. Just before it passes point A of the guide b. As it passes point B.
Problem 3/53 The hollow tube is pivoted about a horizontal axis through point O and is made to rotate in the vertical plane with a constant ccw angular velocity of 3 rad/s. If a 0.2 lb particle is sliding in the tube toward O with a velocity of 4 ft/s relative to the tube when the ? = 300 is passed, calculate the normal force exerted by the wall of the tube on the particle at this instant.
