Physics 106P: Lecture 1 Notes
... You are towing a car up a hill with constant velocity. The work done on the car by the gravitational force is: ...
... You are towing a car up a hill with constant velocity. The work done on the car by the gravitational force is: ...
Part I
... Newton’s First Law • 1st Law: (“Law of Inertia”): “In the absence of external forces and when viewed from an inertial reference frame, an object at rest remains at rest and an object in motion remains in motion with a constant velocity (constant speed in a straight line).” Sir Isaac Newton as an ...
... Newton’s First Law • 1st Law: (“Law of Inertia”): “In the absence of external forces and when viewed from an inertial reference frame, an object at rest remains at rest and an object in motion remains in motion with a constant velocity (constant speed in a straight line).” Sir Isaac Newton as an ...
momentum
... Momentum Commonly used in terms of sports (i.e. The team has a lot of momentum before the big championship game) The team with momentum is “on the move” and will be hard to defeat. ...
... Momentum Commonly used in terms of sports (i.e. The team has a lot of momentum before the big championship game) The team with momentum is “on the move” and will be hard to defeat. ...
Document
... where we set L1 1000 m in the last step. Thus, if L1 and L2 are no different than about 1.4 m, then runner 1 is indeed faster than runner 2. However, if L1 is shorter than L2 by more than 1.4 m, then runner 2 would actually be faster. 13. We use Eq. 2-2 for average velocity and Eq. 2-4 for instant ...
... where we set L1 1000 m in the last step. Thus, if L1 and L2 are no different than about 1.4 m, then runner 1 is indeed faster than runner 2. However, if L1 is shorter than L2 by more than 1.4 m, then runner 2 would actually be faster. 13. We use Eq. 2-2 for average velocity and Eq. 2-4 for instant ...
Newton’s Laws of Motion
... watch it slide to a rest position. The book comes to a rest because of the presence of a force that force being the force of friction which brings the book to a rest position. ...
... watch it slide to a rest position. The book comes to a rest because of the presence of a force that force being the force of friction which brings the book to a rest position. ...
Slide 1
... Use what you know about forces and Newton’s first and second laws of motion! You can use an Atwood machine to measure frictional forces and the force of gravity ...
... Use what you know about forces and Newton’s first and second laws of motion! You can use an Atwood machine to measure frictional forces and the force of gravity ...
Chapter 8 Accelerated Circular Motion continued
... Thus, in uniform circular motion there must be a net force to produce the centripetal acceleration. The centripetal force is the name given to the net force required to keep an object moving on a circular path. The direction of the centripetal force always points toward the center of the circle and ...
... Thus, in uniform circular motion there must be a net force to produce the centripetal acceleration. The centripetal force is the name given to the net force required to keep an object moving on a circular path. The direction of the centripetal force always points toward the center of the circle and ...
Exam 1B #2
... sweeps out a cone as the bob rotates.) The bob has a mass of 0.040 kg, the string has length L = 0.90 m and negligible mass, and the bob follows a circular path of circumference 0.96 m. ...
... sweeps out a cone as the bob rotates.) The bob has a mass of 0.040 kg, the string has length L = 0.90 m and negligible mass, and the bob follows a circular path of circumference 0.96 m. ...
rotational kinetic energy
... KE (rotatory) = KE (translatory) if k = 1 or I = mR2. This is true for a ring. Hence, answer is (d). ...
... KE (rotatory) = KE (translatory) if k = 1 or I = mR2. This is true for a ring. Hence, answer is (d). ...
Chapter_9a
... If no _________________ is acting on a particle, it’s momentum is conserved. This is also true for a system of particles: If no external forces interact with a system of particles the total momentum of the system remains constant. ...
... If no _________________ is acting on a particle, it’s momentum is conserved. This is also true for a system of particles: If no external forces interact with a system of particles the total momentum of the system remains constant. ...
ThePhysicsOfSkydiving - Aponte and Shluger
... Newton's second law states that "Force equals mass times acceleration (F = ma)": the net force on an object is equal to the mass of the object multiplied by its acceleration A skydiver needs this equation to figure out when he's gonna hit the ground and when to pull the parachute. The skydiver can f ...
... Newton's second law states that "Force equals mass times acceleration (F = ma)": the net force on an object is equal to the mass of the object multiplied by its acceleration A skydiver needs this equation to figure out when he's gonna hit the ground and when to pull the parachute. The skydiver can f ...
chpt 19Force and newton`s Laws
... First law describes how an object moves when the net force acting on it is zero First law states that an object at rest will remain at rest, or an object in motion will continue in motion unless an outside force acts on it. This occurs when a balanced force is applied Inertia is an example of ...
... First law describes how an object moves when the net force acting on it is zero First law states that an object at rest will remain at rest, or an object in motion will continue in motion unless an outside force acts on it. This occurs when a balanced force is applied Inertia is an example of ...
Physics 144 (section 1) Homework 4
... (b) Find the magnitude of the total momentum of the system from the given data. (c) Find the speed of he center of mass of the system. (d) Find the total momentum of the system using the speed of the center of mass. Compare to your results in part (b) and comment. ...
... (b) Find the magnitude of the total momentum of the system from the given data. (c) Find the speed of he center of mass of the system. (d) Find the total momentum of the system using the speed of the center of mass. Compare to your results in part (b) and comment. ...
Normal Force
... Newton’s 2nd Law of Motion 2. The acceleration a of a body is inversely proportional to its mass m, directly proportional to the net force F, and in the same direction as the net force. ...
... Newton’s 2nd Law of Motion 2. The acceleration a of a body is inversely proportional to its mass m, directly proportional to the net force F, and in the same direction as the net force. ...
Forces
... Bob the squirrel is mowing his lawn. A lawn mower is pushed across the ground with a force of 25 N. The ground provides 14 N of resistance. What is the net force on the lawn mower in the x-direction (along the ground)? ...
... Bob the squirrel is mowing his lawn. A lawn mower is pushed across the ground with a force of 25 N. The ground provides 14 N of resistance. What is the net force on the lawn mower in the x-direction (along the ground)? ...
Chapter 20 Concept Tests - University of Colorado Boulder
... the B-field is up, and the forces cancel. But if charge is negative, both forces switch direction and the forces still cancel. In either case, the fact that the particles is moving with constant velocity implies that Fnet = 0. Since the net force is zero, the magnetic force (magnitude |q|vB) must ca ...
... the B-field is up, and the forces cancel. But if charge is negative, both forces switch direction and the forces still cancel. In either case, the fact that the particles is moving with constant velocity implies that Fnet = 0. Since the net force is zero, the magnetic force (magnitude |q|vB) must ca ...
Dynamics II Motion in a Plane
... in a horizontal circle of radius 20 cm. a. Find the tension is the string and b. the angular speed of the ball in rpm. Analysis: The mass moves in a horizontal circle of radius The acceleration and the net force vector point to the center of the circle, not along the string. The only two forces are ...
... in a horizontal circle of radius 20 cm. a. Find the tension is the string and b. the angular speed of the ball in rpm. Analysis: The mass moves in a horizontal circle of radius The acceleration and the net force vector point to the center of the circle, not along the string. The only two forces are ...
CCA Review - Net Start Class
... 12. Which of the following best describes the force when an elevator car moves downward with a constant velocity? Circle the correct answer. A. the FT is greater B. the FW is greater C. the FT equals the FW 13. A crate has a weight of 56 N. What is the mass of the crate? 14. To accelerate at 300 m/s ...
... 12. Which of the following best describes the force when an elevator car moves downward with a constant velocity? Circle the correct answer. A. the FT is greater B. the FW is greater C. the FT equals the FW 13. A crate has a weight of 56 N. What is the mass of the crate? 14. To accelerate at 300 m/s ...
Physics 101: Lecture 12 Work and Energy
... ÎThermodynamics (movement of heat) ÎQuantum mechanics... Very useful tools ÎYou will learn new (sometimes much easier) ways to solve problems ...
... ÎThermodynamics (movement of heat) ÎQuantum mechanics... Very useful tools ÎYou will learn new (sometimes much easier) ways to solve problems ...
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.