The Physical Forces of Everyday Life, 3, 10
... 5. The spinning skater To illustrate this complicated stuff consider, first, a spinning ice skater (Fig. III. 5). She begins her spin (by generating a vertical torque on her body with her skates) with her arms extended. Then, spinning freely, i.e. no more external torque and very little friction wit ...
... 5. The spinning skater To illustrate this complicated stuff consider, first, a spinning ice skater (Fig. III. 5). She begins her spin (by generating a vertical torque on her body with her skates) with her arms extended. Then, spinning freely, i.e. no more external torque and very little friction wit ...
Chapter 10 Dynamics of Rotational Motion
... ⃗ − force applied to object at point B F ⃗r − position of B measured with origin at A. ⃗ and ⃗r lie in the plane orthogonal to the axis It is assume that both vectors F of rotation, then torque would point along the axis of rotation determined by right-hand rule. It is a convention to use right hand ...
... ⃗ − force applied to object at point B F ⃗r − position of B measured with origin at A. ⃗ and ⃗r lie in the plane orthogonal to the axis It is assume that both vectors F of rotation, then torque would point along the axis of rotation determined by right-hand rule. It is a convention to use right hand ...
MATH 114 - EXTRA CREDIT PROBLEM # 5 Precession of spinning
... Suppose that a wheel starts off by spinning parallel to the y − z plane in R3 with the center of the axle at the point (a, 0, 0) with a > 0. Suppose that the radius of the wheel is R and that it is spinning at angular velocity ω radians per second in a counterclockwise direction as you look down at ...
... Suppose that a wheel starts off by spinning parallel to the y − z plane in R3 with the center of the axle at the point (a, 0, 0) with a > 0. Suppose that the radius of the wheel is R and that it is spinning at angular velocity ω radians per second in a counterclockwise direction as you look down at ...
Rigid Bodies, Translations, and Rotations TERMS
... rests on a concrete pillar. When a clown (mass 75.0 kg) steps out halfway onto the board, the board tilts so the rope end is 30° from the horizontal and the rope stays vertical. (a) In which situation will the rope tension be larger: (1) the board without the clown on it, (2) the board with the clow ...
... rests on a concrete pillar. When a clown (mass 75.0 kg) steps out halfway onto the board, the board tilts so the rope end is 30° from the horizontal and the rope stays vertical. (a) In which situation will the rope tension be larger: (1) the board without the clown on it, (2) the board with the clow ...
PreAP_Physics_Spring_Semester_Practice_Final
... 12. A baseball is pitched very fast. Another baseball of equal mass is pitched very slowly. Which of the following statements is correct? a. The fast-moving baseball is harder to stop because it has more momentum. b. The slow-moving baseball is harder to stop because it has more momentum. c. The fas ...
... 12. A baseball is pitched very fast. Another baseball of equal mass is pitched very slowly. Which of the following statements is correct? a. The fast-moving baseball is harder to stop because it has more momentum. b. The slow-moving baseball is harder to stop because it has more momentum. c. The fas ...
Circular Motion and Torque
... Uniform Circular Motion • Motion in a perfect circle (so the radius is always the same) at a constant speed. ...
... Uniform Circular Motion • Motion in a perfect circle (so the radius is always the same) at a constant speed. ...
Work
... When is work done? • When we do work, it is done on an object. • If an object does not move through some displacement, then no work is done on that object. • In the same way, if there is no force acting on the object, there is no work. • Symbol: W • Units: Nm which is called a Joule ...
... When is work done? • When we do work, it is done on an object. • If an object does not move through some displacement, then no work is done on that object. • In the same way, if there is no force acting on the object, there is no work. • Symbol: W • Units: Nm which is called a Joule ...
