Physics 430
... A force F acting on a particle is conservative if and only if it satisfies two conditions: 1. F depends only on the particle’s position r (and not on the velocity v, or the time t, or any other variable); that is, F = F(r). 2. For any two points 1 and 2, the work W(1 2) done by F is the same for a ...
... A force F acting on a particle is conservative if and only if it satisfies two conditions: 1. F depends only on the particle’s position r (and not on the velocity v, or the time t, or any other variable); that is, F = F(r). 2. For any two points 1 and 2, the work W(1 2) done by F is the same for a ...
press the brake to apply a force in the opposite direction, so that the
... Newton’s Third Law For every action, there is an equal and opposite reaction. When the cannon fires, the chemical energy of the gunpowder is converted into the kinetic energy of the cannonball. The cannon applies a force to the cannonball, causing a sudden increase in velocity. ...
... Newton’s Third Law For every action, there is an equal and opposite reaction. When the cannon fires, the chemical energy of the gunpowder is converted into the kinetic energy of the cannonball. The cannon applies a force to the cannonball, causing a sudden increase in velocity. ...
- Review velocity, acceleration and the conditions needed to cause
... Is there really a force pulling the driver outward? What direction is the force really pointing, and why? No - the force of the banked road pushes the car to the inside of the turn - the driver feels his body tending toward a straight direction due to the Law of Inertia, and the moving car pulls him ...
... Is there really a force pulling the driver outward? What direction is the force really pointing, and why? No - the force of the banked road pushes the car to the inside of the turn - the driver feels his body tending toward a straight direction due to the Law of Inertia, and the moving car pulls him ...
Lecture 8: Forces & The Laws of Motion
... the book greater? a) the book on the flat table b) the book on the inclined plane c) the force of friction is the same in both cases 2) If you hold your physics book up against the chalkboard, in what direction is the force of friction directed? ...
... the book greater? a) the book on the flat table b) the book on the inclined plane c) the force of friction is the same in both cases 2) If you hold your physics book up against the chalkboard, in what direction is the force of friction directed? ...
Gravity - Model High School
... All objects regardless of their mass are accelerated equally by gravity Since this acceleration is so important to the motion of all objects on the surface of the earth it is assigned g = 9.8 m/s2 (or 10 m/s2) ...
... All objects regardless of their mass are accelerated equally by gravity Since this acceleration is so important to the motion of all objects on the surface of the earth it is assigned g = 9.8 m/s2 (or 10 m/s2) ...
Rotational and Translational Motion
... Answer 3. Energy is not conserved because there are energy losses due to kinetic friction. Angular momentum about the center of mass is not constant because the friction exerts a torque about the center of mass. Angular momentum about a fixed point on the ground is constant because the sum of the to ...
... Answer 3. Energy is not conserved because there are energy losses due to kinetic friction. Angular momentum about the center of mass is not constant because the friction exerts a torque about the center of mass. Angular momentum about a fixed point on the ground is constant because the sum of the to ...
Forces - WordPress.com
... (zero velocity). If an object is moving at constant velocity, it will keep moving at a constant velocity. ...
... (zero velocity). If an object is moving at constant velocity, it will keep moving at a constant velocity. ...
Work, Energy & Power
... THEOREM. It basically means that if we impart work to an object it will undergo a CHANGE in speed and thus a change in KINETIC ENERGY. Since both WORK and KINETIC ENERGY are expressed in JOULES, they are EQUIVALENT TERMS! " The net WORK done on an object is equal to the change in kinetic energy of t ...
... THEOREM. It basically means that if we impart work to an object it will undergo a CHANGE in speed and thus a change in KINETIC ENERGY. Since both WORK and KINETIC ENERGY are expressed in JOULES, they are EQUIVALENT TERMS! " The net WORK done on an object is equal to the change in kinetic energy of t ...
Which of the above statements is/are correct?
... A paratrooper predicts that objects have less weight at high altitudes. He tests this hypothesis by using a spring scale calibrated in Newtons to weigh a kilogram block of butter while jumping from an airplane at an altitude of 5000 m. What will the spring scale read during the first few moments of ...
... A paratrooper predicts that objects have less weight at high altitudes. He tests this hypothesis by using a spring scale calibrated in Newtons to weigh a kilogram block of butter while jumping from an airplane at an altitude of 5000 m. What will the spring scale read during the first few moments of ...
Universal Gravitation
... Apparent Weight is the normal support force. In an inertial (non-accelerating) frame of reference • FN = FG What is the weight of a 70 kg astronaut in a satellite with an orbital radius of 1.3 x 107 m? Weight = GMm/r2 Using: G = 6.67 x 10-11 N-m2/kg2 and M = 5.98 x 1023 kg Weight = 16 N What is the ...
... Apparent Weight is the normal support force. In an inertial (non-accelerating) frame of reference • FN = FG What is the weight of a 70 kg astronaut in a satellite with an orbital radius of 1.3 x 107 m? Weight = GMm/r2 Using: G = 6.67 x 10-11 N-m2/kg2 and M = 5.98 x 1023 kg Weight = 16 N What is the ...
6.6, Quiz
... 3. A ball on a frictionless track is released from rest at a point A. What is the speed of the ball at point C? At point D? One of the big concepts in physics (right up there with F = ma) is conservation of energy. As long as the system is conservative (i.e. energy is not lost to friction, heat, sou ...
... 3. A ball on a frictionless track is released from rest at a point A. What is the speed of the ball at point C? At point D? One of the big concepts in physics (right up there with F = ma) is conservation of energy. As long as the system is conservative (i.e. energy is not lost to friction, heat, sou ...
L14_RigidBody
... Center of Mass Object’s “position” is the position of its center of mass Integration of differential mass times position in object Approximate by summing over representational particles in object ...
... Center of Mass Object’s “position” is the position of its center of mass Integration of differential mass times position in object Approximate by summing over representational particles in object ...
Chapter 6 Notes
... The work done by a varying force can be determined graphically. If you plot F vs d, then the work is the area under the curve at the two points. ...
... The work done by a varying force can be determined graphically. If you plot F vs d, then the work is the area under the curve at the two points. ...
Forces
... • Newton's first law of motion is that an object stays at rest or stays at a constant velocity unless acted upon by a net force • Does this law pertain to moving objects, objects at rest or both? ...
... • Newton's first law of motion is that an object stays at rest or stays at a constant velocity unless acted upon by a net force • Does this law pertain to moving objects, objects at rest or both? ...
File - Martin Ray Arcibal
... 1. Purpose The purpose of this experiment is to test the validity of Newton’s second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to the object and inversely proportional to its mass. This experiment will test only the first half of ...
... 1. Purpose The purpose of this experiment is to test the validity of Newton’s second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to the object and inversely proportional to its mass. This experiment will test only the first half of ...
Tuesday, June 21, 2005
... Example for Linear Momentum Conservation A type of particle, a neutral kaon (K0), decays (breaks up) into a pair of particles called pions (p+ and p-) that are oppositely charged but have equal mass. Assuming the K0 is initially produced at rest, prove that the two pions must have momenta that are ...
... Example for Linear Momentum Conservation A type of particle, a neutral kaon (K0), decays (breaks up) into a pair of particles called pions (p+ and p-) that are oppositely charged but have equal mass. Assuming the K0 is initially produced at rest, prove that the two pions must have momenta that are ...
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.