Notes on Forces with Friction
... If you push a cardboard box along a wooden floor, you have to push to overcome the force of friction. This force makes it harder for you to slide the box. The force of friction opposes any force that can cause one object to slide past another. There are two types of friction: static and kinetic. T ...
... If you push a cardboard box along a wooden floor, you have to push to overcome the force of friction. This force makes it harder for you to slide the box. The force of friction opposes any force that can cause one object to slide past another. There are two types of friction: static and kinetic. T ...
CHAPTER 1 Forces in action
... When explaining changes in motion, it is necessary to consider another property of the object — its mass. It is clear that it is more difficult, for example, to stop a truck moving at 20 m s−1 than it is to stop a tennis ball moving at the same speed. The physical quantity momentum is useful in expl ...
... When explaining changes in motion, it is necessary to consider another property of the object — its mass. It is clear that it is more difficult, for example, to stop a truck moving at 20 m s−1 than it is to stop a tennis ball moving at the same speed. The physical quantity momentum is useful in expl ...
1030 version
... Important: When equation (4) is used with the above value for G, the mass m must be in kilograms and r in meters; otherwise, any numerical values you obtain will have nonsense units. Identical Gravitational Acceleration One Earth Mass M E ...
... Important: When equation (4) is used with the above value for G, the mass m must be in kilograms and r in meters; otherwise, any numerical values you obtain will have nonsense units. Identical Gravitational Acceleration One Earth Mass M E ...
Centripetal Force: Driving on Curves
... 6. Acceleration is always in a straight line. In order to apply Newton’s second law of motion to motion along a curve, it is helpful for the teacher to interpret the mathematical statement, ΣF = ma, as the sum of the net forces acting on an object equals the product of its mass and acceleration. Bot ...
... 6. Acceleration is always in a straight line. In order to apply Newton’s second law of motion to motion along a curve, it is helpful for the teacher to interpret the mathematical statement, ΣF = ma, as the sum of the net forces acting on an object equals the product of its mass and acceleration. Bot ...
Newton`s Laws of Motion
... Newton’s First Law of Motion Newton’s First Law of Motion, also known as Law of Inertia, states that an object at rest will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity unless it is acted upon by an unbalanced force. ...
... Newton’s First Law of Motion Newton’s First Law of Motion, also known as Law of Inertia, states that an object at rest will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity unless it is acted upon by an unbalanced force. ...
laws of motion
... to verify or refute theories. Science meant measurement of quantities and a search for mathematical relations between them. Not undeservedly, many regard Galileo as the father of modern science. ...
... to verify or refute theories. Science meant measurement of quantities and a search for mathematical relations between them. Not undeservedly, many regard Galileo as the father of modern science. ...
CHAPTER 1 Forces in action
... same speed. The physical quantity momentum is useful in explaining changes in motion, because it takes into account the mass as well as the velocity of a moving object. The momentum p of an object is defined as the product of its mass m and its velocity v. Thus, p = mv. ...
... same speed. The physical quantity momentum is useful in explaining changes in motion, because it takes into account the mass as well as the velocity of a moving object. The momentum p of an object is defined as the product of its mass m and its velocity v. Thus, p = mv. ...
Physics 231 Topic 3: Forces & Laws of Motion
... God said, Let Newton be! And all was light.” Alexander Pope (1688-1744) ...
... God said, Let Newton be! And all was light.” Alexander Pope (1688-1744) ...
Circular Motion Notes F10
... Linear speed is the distance traveled per unit of time. • A point on the outer edge of the turntable travels a greater distance in one rotation than a point near the center. • The linear speed is greater on the outer edge of a rotating object than it is closer to the axis. • The speed of something m ...
... Linear speed is the distance traveled per unit of time. • A point on the outer edge of the turntable travels a greater distance in one rotation than a point near the center. • The linear speed is greater on the outer edge of a rotating object than it is closer to the axis. • The speed of something m ...
Classical central-force problem
In classical mechanics, the central-force problem is to determine the motion of a particle under the influence of a single central force. A central force is a force that points from the particle directly towards (or directly away from) a fixed point in space, the center, and whose magnitude only depends on the distance of the object to the center. In many important cases, the problem can be solved analytically, i.e., in terms of well-studied functions such as trigonometric functions.The solution of this problem is important to classical physics, since many naturally occurring forces are central. Examples include gravity and electromagnetism as described by Newton's law of universal gravitation and Coulomb's law, respectively. The problem is also important because some more complicated problems in classical physics (such as the two-body problem with forces along the line connecting the two bodies) can be reduced to a central-force problem. Finally, the solution to the central-force problem often makes a good initial approximation of the true motion, as in calculating the motion of the planets in the Solar System.