ConcepTest 4.6 Force and Two Masses
... ConcepTest 4.6 Force and Two Masses A force F acts on mass m1 giving acceleration a1. The same force acts on a different mass m2 giving acceleration a2 = 2a1. If m1 and m2 are glued together and the same force F acts on this combination, what is the resulting acceleration? F ...
... ConcepTest 4.6 Force and Two Masses A force F acts on mass m1 giving acceleration a1. The same force acts on a different mass m2 giving acceleration a2 = 2a1. If m1 and m2 are glued together and the same force F acts on this combination, what is the resulting acceleration? F ...
Coefficient of Friction Lab
... 3) Calculate the coefficient of kinetic friction between the wood block and each of the surfaces. 4) Use the applied force, the force of gravity parallel to the plane, the force of friction to calculate μk for the desk top moving up and down the plane in part 2. 5) List the objects in order of incre ...
... 3) Calculate the coefficient of kinetic friction between the wood block and each of the surfaces. 4) Use the applied force, the force of gravity parallel to the plane, the force of friction to calculate μk for the desk top moving up and down the plane in part 2. 5) List the objects in order of incre ...
Document
... A crate having a mass of 60 kg falls horizontally off the back of a truck which is traveling at 30 m/s. Compute the coefficient of kinetic friction between the road and the crate if the crate slides 45 m on the ground with no tumbling along the road before coming to rest. Assume that the initial sp ...
... A crate having a mass of 60 kg falls horizontally off the back of a truck which is traveling at 30 m/s. Compute the coefficient of kinetic friction between the road and the crate if the crate slides 45 m on the ground with no tumbling along the road before coming to rest. Assume that the initial sp ...
Newton`s Laws of Motion - McMaster Physics and Astronomy
... The gravitational force is also called weight and is measured in Newtons. Weight is proportional to mass : Fw = mg, where g is the gravitational field (and is also the acceleration of an object in free fall). ...
... The gravitational force is also called weight and is measured in Newtons. Weight is proportional to mass : Fw = mg, where g is the gravitational field (and is also the acceleration of an object in free fall). ...
Chapter 4 Dynamics: Newton`s Laws of Motion
... FP = Ffr = µ k FN = µ k mg = ( 0.30 )( 35 kg ) 9.8 m s 2 = 103 = 1.0 × 10 2 N If the coefficient of kinetic friction is zero, then the horizontal force required is 0 N, since there is no friction to counteract. Of course, it would take a force to START the crate moving, but once it was moving, no fu ...
... FP = Ffr = µ k FN = µ k mg = ( 0.30 )( 35 kg ) 9.8 m s 2 = 103 = 1.0 × 10 2 N If the coefficient of kinetic friction is zero, then the horizontal force required is 0 N, since there is no friction to counteract. Of course, it would take a force to START the crate moving, but once it was moving, no fu ...
Phys_21_J5_Forces_Friction_Pulleys
... in the figure. Assuming the block is pulled with the string being kept parallel to the table surface draw a free-body diagram that illustrates all the forces acting on the block. If the block is being pulled at a constant speed how do the applied force F and friction force f compare in direction and ...
... in the figure. Assuming the block is pulled with the string being kept parallel to the table surface draw a free-body diagram that illustrates all the forces acting on the block. If the block is being pulled at a constant speed how do the applied force F and friction force f compare in direction and ...
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
... horizontal. The center of mass of the cylinder has dropped a vertical distance h when it reaches the bottom of the incline. Let g denote the gravitational constant. The coefficient of static friction between the cylinder and the surface is s . The cylinder rolls without slipping down the incline. U ...
... horizontal. The center of mass of the cylinder has dropped a vertical distance h when it reaches the bottom of the incline. Let g denote the gravitational constant. The coefficient of static friction between the cylinder and the surface is s . The cylinder rolls without slipping down the incline. U ...
Impact Mechanics - Assets - Cambridge University Press
... When a bat strikes a ball or a hammer hits a nail, the surfaces of two bodies come together with some relative velocity at an initial instant termed incidence. After incidence there would be interference or interpenetration of the bodies were it not for the interface pressure that arises in a small ...
... When a bat strikes a ball or a hammer hits a nail, the surfaces of two bodies come together with some relative velocity at an initial instant termed incidence. After incidence there would be interference or interpenetration of the bodies were it not for the interface pressure that arises in a small ...
Frictional contact mechanics
Contact mechanics is the study of the deformation of solids that touch each other at one or more points. This can be divided into compressive and adhesive forces in the direction perpendicular to the interface, and frictional forces in the tangential direction. Frictional contact mechanics is the study of the deformation of bodies in the presence of frictional effects, whereas frictionless contact mechanics assumes the absence of such effects.Frictional contact mechanics is concerned with a large range of different scales. At the macroscopic scale, it is applied for the investigation of the motion of contacting bodies (see Contact dynamics). For instance the bouncing of a rubber ball on a surface depends on the frictional interaction at the contact interface. Here the total force versus indentation and lateral displacement are of main concern. At the intermediate scale, one is interested in the local stresses, strains and deformations of the contacting bodies in and near the contact area. For instance to derive or validate contact models at the macroscopic scale, or to investigate wear and damage of the contacting bodies’ surfaces. Application areas of this scale are tire-pavement interaction, railway wheel-rail interaction, roller bearing analysis, etc. Finally, at the microscopic and nano-scales, contact mechanics is used to increase our understanding of tribological systems, e.g. investigate the origin of friction, and for the engineering of advanced devices like atomic force microscopes and MEMS devices.This page is mainly concerned with the second scale: getting basic insight in the stresses and deformations in and near the contact patch, without paying too much attention to the detailed mechanisms by which they come about.