Physics 2010 Summer 2011 REVIEW FOR MIDTERM 2
... What is the vertical component of the velocity of the car just before it hits the lake? How far from the base of the cliff does the car hit the water? What is the maximum height above the lake attained by the car? ...
... What is the vertical component of the velocity of the car just before it hits the lake? How far from the base of the cliff does the car hit the water? What is the maximum height above the lake attained by the car? ...
Newton’s Second Law of Motion – Force & Acceleration
... contact with each other, and is always acts in direction to oppose motion ...
... contact with each other, and is always acts in direction to oppose motion ...
3 Types of friction
... Types of friction: 1) Static friction: Friction that resists the initiation (start) of sliding motion between two objects that are in contact and at rest. Remember Newton’s 1st Law of Inertia…a body at rest, stays at rest, unless an unbalanced force acts on it? Usually the force keeping it at rest ...
... Types of friction: 1) Static friction: Friction that resists the initiation (start) of sliding motion between two objects that are in contact and at rest. Remember Newton’s 1st Law of Inertia…a body at rest, stays at rest, unless an unbalanced force acts on it? Usually the force keeping it at rest ...
Fnet = m a
... Let’s look at the example of a cannonball fired at certain angle above the horizontal. According to Newton’s first law of motion and in the absence of gravity, the cannonball should travel in a straight line forever. However, we live on Earth and there is gravity. It acts straight downwards. Each se ...
... Let’s look at the example of a cannonball fired at certain angle above the horizontal. According to Newton’s first law of motion and in the absence of gravity, the cannonball should travel in a straight line forever. However, we live on Earth and there is gravity. It acts straight downwards. Each se ...
Chapter 2 Vehicle Dynamics Modeling
... fixed reference point. Researchers often find this direction more interesting than the longitudinal one since extreme values of lateral acceleration or lateral velocity can decrease vehicle stability and controllability. Tire slip angle: This is equivalent to heading in a given direction but walking ...
... fixed reference point. Researchers often find this direction more interesting than the longitudinal one since extreme values of lateral acceleration or lateral velocity can decrease vehicle stability and controllability. Tire slip angle: This is equivalent to heading in a given direction but walking ...
Friction & Inclined Planes
... constant of proportion ality directly related to the Force Normal. coefficien t of friction Mostly due to the fact Fsf s FN The coefficient of that BOTH are surface forces ...
... constant of proportion ality directly related to the Force Normal. coefficien t of friction Mostly due to the fact Fsf s FN The coefficient of that BOTH are surface forces ...
ppt
... A way out of Da Vinci’s paradox has been suggested by Bowden and Tabor, who distinguished between the real contact area and the geometric contact area. The real contact area is only a small fraction of the geometrical contact area. ...
... A way out of Da Vinci’s paradox has been suggested by Bowden and Tabor, who distinguished between the real contact area and the geometric contact area. The real contact area is only a small fraction of the geometrical contact area. ...
Review Rotational Motion and Equilibrium and Elasticity
... long and initially at rest in the water. The child then slowly walks to the other end of the canoe. How far does the canoe move in the water, assuming water friction is negligible? A.) 1.0 m B.) 2.0 m C.) 3.0 m D.) 4.0 m E.) 5.0 m 10.) The center of mass (or center of gravity) of a two-particle syst ...
... long and initially at rest in the water. The child then slowly walks to the other end of the canoe. How far does the canoe move in the water, assuming water friction is negligible? A.) 1.0 m B.) 2.0 m C.) 3.0 m D.) 4.0 m E.) 5.0 m 10.) The center of mass (or center of gravity) of a two-particle syst ...
Static and Kinetic Friction
... you are standing up then the friction between the floor and your shoes is preventing you from slipping. Frictional forces can be found between any two bodies that are in contact with each other. In this experiment we will study the concept of friction between a wooden block and a sliding surface, wh ...
... you are standing up then the friction between the floor and your shoes is preventing you from slipping. Frictional forces can be found between any two bodies that are in contact with each other. In this experiment we will study the concept of friction between a wooden block and a sliding surface, wh ...
Friction Experiment - NYU Tandon School of Engineering
... define friction, we must first introduce the concepts of force and velocity. Force and velocity are vector quantities; they have both a magnitude and direction. Velocity can be thought of as the speed in a specified direction, with which a given object is traveling. Force is the mechanism through wh ...
... define friction, we must first introduce the concepts of force and velocity. Force and velocity are vector quantities; they have both a magnitude and direction. Velocity can be thought of as the speed in a specified direction, with which a given object is traveling. Force is the mechanism through wh ...
Work, Power, and Simple Machines
... If you are holding an object in your arms, the upward force you are exerting is equal to the object’s weight. If you hold the object until your arms become very tired, you have still done no work because you did not move the object in the direction of the force. When you lift an object, you exert a ...
... If you are holding an object in your arms, the upward force you are exerting is equal to the object’s weight. If you hold the object until your arms become very tired, you have still done no work because you did not move the object in the direction of the force. When you lift an object, you exert a ...
Lab 4: Friction
... 2. Use a triple beam balance to find the mass of the wood block, and record it in your data table. Calculate the weight of the block and record it in your data table. 3. Keeping the board horizontal, place the block on top of the board, connect the string to it, and run the string over the pulley. ...
... 2. Use a triple beam balance to find the mass of the wood block, and record it in your data table. Calculate the weight of the block and record it in your data table. 3. Keeping the board horizontal, place the block on top of the board, connect the string to it, and run the string over the pulley. ...
Reading materials
... component of the motion combine to produce the interesting shape of the path traced out by a point on the outer edge of the wheel that is rolling without slipping. This shape is known as a cycloid. Step 2 – Now consider the translational part of the motion only (i.e., ignore the fact that the wheel ...
... component of the motion combine to produce the interesting shape of the path traced out by a point on the outer edge of the wheel that is rolling without slipping. This shape is known as a cycloid. Step 2 – Now consider the translational part of the motion only (i.e., ignore the fact that the wheel ...
Rolling resistance
Rolling resistance, sometimes called rolling friction or rolling drag, is the force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface. It is mainly caused by non-elastic effects; that is, not all the energy needed for deformation (or movement) of the wheel, roadbed, etc. is recovered when the pressure is removed. Two forms of this are hysteresis losses (see below), and permanent (plastic) deformation of the object or the surface (e.g. soil). Another cause of rolling resistance lies in the slippage between the wheel and the surface, which dissipates energy. Note that only the last of these effects involves friction, therefore the name ""rolling friction"" is to an extent a misnomer.In analogy with sliding friction, rolling resistance is often expressed as a coefficient times the normal force. This coefficient of rolling resistance is generally much smaller than the coefficient of sliding friction.Any coasting wheeled vehicle will gradually slow down due to rolling resistance including that of the bearings, but a train car with steel wheels running on steel rails will roll farther than a bus of the same mass with rubber tires running on tarmac. Factors that contribute to rolling resistance are the (amount of) deformation of the wheels, the deformation of the roadbed surface, and movement below the surface. Additional contributing factors include wheel diameter, speed, load on wheel, surface adhesion, sliding, and relative micro-sliding between the surfaces of contact. The losses due to hysteresis also depend strongly on the material properties of the wheel or tire and the surface. For example, a rubber tire will have higher rolling resistance on a paved road than a steel railroad wheel on a steel rail. Also, sand on the ground will give more rolling resistance than concrete.