PPT-3. A force of 110 N is required to move a table of 120 kg. What is the coefficient of

μ s between the table and the floor Chapter Assessment Questions Chapter Assessment Questions 3 A B C D Reason The coefficient of static friction is the ratio of the friction force to the normal force or . What do you Remember about Friction?. What do you Remember about Friction?. Friction opposes motion. Friction is dependent on the texture of the surfaces. Friction is dependent on normal force. motion. Friction. Friction is a force that opposes the motion, or tendency of motion, of an object.. Friction is caused . mostly by . the . electromagnetic . interactions of particles within molecules at the surfaces of objects in contact. While these interactions can be rather complex, their combined effects can be reasonably approximated with a decent amount of consistency.. Friction. Friction is a force that opposes the motion, or tendency of motion, of an object.. Friction is primarily caused by the chemical bonding of molecules at the surfaces of objects in contact (intermolecular forces which are electrical in nature). - Class . 11. Today:. . Friction, Drag. Rolling . without slipping. Examples . of Newton’s Second Law. Microscopic bumps and holes crash into each other, causing a frictional force.. Pre-class Reading Quiz. (Chapter. 2. Objectives. . Students must be able to. Utilize theory of dry friction. Describe . theory of dry friction. . Describe . physical meanings. of frictional effects. Describe and differentiate between . Relationship with normal force magnitude. Problem solving involving frictional forces. Lecture 7: Friction. Frictional forces. Frictional force . opposes . motion . or . impending motion relative to a surface. Friction. Unit 2 . Lesson 1. Friction. Friction is a part of everyday life, without it the world would be a very different place. Walking would not be possible, either would driving a car or playing sports. Even sitting on a stool would be difficult.. A 40 N chair is pushed across a room with an acceleration of 2 m/s. 2. . Steven pushes with a force of 15N. What is the force of friction acting on the chair?. Static and Kinetic Friction. Static – not moving. . Students must be able to. Utilize theory of dry friction. Describe . theory of dry friction. . Describe . physical meanings. of frictional effects. Describe and differentiate between . static and kinetic coefficients of friction. Balloon Balanced forces Balanced forces, is are the forces on the balloon balanced? How do you know? Draw the force Diagram for the balloons. Are they balanced? We have a buoyant force. So what can I do if I want to balance out the buoyant force with just the force of gravity? a) What are the dynamic and maximum static forces of friction. ?. a) . 23.03 . N, . 8.33 N. ; . b. ) Nada; . c. ) . +5.33 m/s/s . accel. ; . d. ) -3.17 . m/s/s . decel. ; . e. ) . 41.8 N right; . Friction k a is usually greater than the coefficient of static friction s b usually equals s c is usually smaller than s d equals the applied force that exceeds the maximum static force c 2 The purpos finishing Chapter 6:. Friction, Drag. . Rolling . without slipping. . Examples . of Newton’s Second Law. Microscopic bumps and holes crash into each other, causing a . frictional. force.. Chris Hadfield recently spent nearly five months in orbit around the Earth. He was living on the International Space Station, which orbits at 370 km above the surface of the Earth (low earth orbit).. 1. STATICS. (ENGINEERING MECHANICS-I). بسم الله الرحمن الرحيم. Friction. Friction is a force that resists the movement of two contacting surfaces that slide relative to one another..