Slide 1
... and angular acceleration - they are very different quantities. α is derived in a similar way as translational acceleration – take the time derivative of angular velocity. ...
... and angular acceleration - they are very different quantities. α is derived in a similar way as translational acceleration – take the time derivative of angular velocity. ...
04__newton_2nd_law__..
... 7) An object following a straight-line path at constant speed A) has zero acceleration. B) has a net force acting upon it in the direction of motion. C) must be moving in a vacuum or in the absence of air drag. D) has no forces acting on it. E) none of these. 8) A skydiver's terminal velocity will ...
... 7) An object following a straight-line path at constant speed A) has zero acceleration. B) has a net force acting upon it in the direction of motion. C) must be moving in a vacuum or in the absence of air drag. D) has no forces acting on it. E) none of these. 8) A skydiver's terminal velocity will ...
Mark the following statements true or false
... 4. (a) The centripetal acceleration of an object undergoing circular motion is always directed toward the center of the circle. The rest are multiple choice. 6. A ball (I=2/5 mr^2) and a hoop (I=mr^2), both with the same mass, are rolled up an incline with the same initial kinetic energy . Therefore ...
... 4. (a) The centripetal acceleration of an object undergoing circular motion is always directed toward the center of the circle. The rest are multiple choice. 6. A ball (I=2/5 mr^2) and a hoop (I=mr^2), both with the same mass, are rolled up an incline with the same initial kinetic energy . Therefore ...
Lesson 2: Work – Kinetic Energy Theorem
... Then as the roller coaster reaches the top of the hill, all the potential energy is unloaded. The force of gravity does positive work (force and displacement vectors in line), and the roller coaster flies down the hill, converting all that potential energy into heart-in-yourthroat kinetic energy. ...
... Then as the roller coaster reaches the top of the hill, all the potential energy is unloaded. The force of gravity does positive work (force and displacement vectors in line), and the roller coaster flies down the hill, converting all that potential energy into heart-in-yourthroat kinetic energy. ...
Lecture08
... • The work done on the mass by gravity is: W = Ugrav y = distance above Earth Where we choose y = 0 is arbitrary, since we take the difference in 2 y’s in calculating Ugrav ...
... • The work done on the mass by gravity is: W = Ugrav y = distance above Earth Where we choose y = 0 is arbitrary, since we take the difference in 2 y’s in calculating Ugrav ...
A mass slides down a frictionless ramp of height h. Its initial speed is
... • Midterm 2 will be Thursday of next week: two old exams on D2L. ...
... • Midterm 2 will be Thursday of next week: two old exams on D2L. ...
Conservation of Energy Implies Conservation of
... a moving frame of reference, in particular, the law of conservation of energy should also hold in the moving frame, i.e., we should have E ′ (t) = E ′ (s), where E ′ denotes the value of the energy in a moving frame. When we change to a moving frame, potential and thermal energy does not change, and ...
... a moving frame of reference, in particular, the law of conservation of energy should also hold in the moving frame, i.e., we should have E ′ (t) = E ′ (s), where E ′ denotes the value of the energy in a moving frame. When we change to a moving frame, potential and thermal energy does not change, and ...
Chapter 3 - "Patterns of Motion"
... line path • Centrifugal force. – The imaginary force that is thought to force objects toward the outside of an object moving in a circular pattern. – Actually the force is simply the tendency of the object to move in a straight line. ...
... line path • Centrifugal force. – The imaginary force that is thought to force objects toward the outside of an object moving in a circular pattern. – Actually the force is simply the tendency of the object to move in a straight line. ...
Conceptual Physics
... 15. vector 41. mass momentum 16. magnitude 42. force 63. energy 17. relative 43. net force 64. kinetic energy 18. frame of reference 44. balanced forces 65. potential energy 19. distance 45. friction 66. gravitational potential 20. time 46. gravity energy 21. direction 47. weight 67. work 22. positi ...
... 15. vector 41. mass momentum 16. magnitude 42. force 63. energy 17. relative 43. net force 64. kinetic energy 18. frame of reference 44. balanced forces 65. potential energy 19. distance 45. friction 66. gravitational potential 20. time 46. gravity energy 21. direction 47. weight 67. work 22. positi ...
connection
... Gravitational force depends on mass: • More massive → greater gravitational pull • Mass is to gravity like electric charge is to electrostatics. In electrostatics: the larger the electric charge something has, the greater the force it feels in an electric field. ...
... Gravitational force depends on mass: • More massive → greater gravitational pull • Mass is to gravity like electric charge is to electrostatics. In electrostatics: the larger the electric charge something has, the greater the force it feels in an electric field. ...
Ch-4-Lecture
... • Showed that heavy and light objects fell at the same rate. • Argued that no force is required to maintain motion. • Developed mathematical description of motion. ...
... • Showed that heavy and light objects fell at the same rate. • Argued that no force is required to maintain motion. • Developed mathematical description of motion. ...
Work & Energy
... 1) It takes 2 s for a car to drive down the street. If it takes 1000 J of work for the engine to move the car, how much power is used? 2) A women pushes a box across the floor with a force of 600 N in 3 s. The displacement is 30 m. ...
... 1) It takes 2 s for a car to drive down the street. If it takes 1000 J of work for the engine to move the car, how much power is used? 2) A women pushes a box across the floor with a force of 600 N in 3 s. The displacement is 30 m. ...
Physics Semester Exam Study Guide January 2013 Answer Section
... 28. An ant on a picnic table travels 3.0 10 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the magnitude of the ant’s displacement relative to its original position? 29. How much power is required to lift a 2.0 kg mass at a speed of 2.0 m/s? 30. Acceleration due to gravity ...
... 28. An ant on a picnic table travels 3.0 10 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the magnitude of the ant’s displacement relative to its original position? 29. How much power is required to lift a 2.0 kg mass at a speed of 2.0 m/s? 30. Acceleration due to gravity ...