- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
Pulley - Mechanical Advantage
Purpose
To demonstrate quantitatively the mechanical advantage of a pulley.
Equipment
Pulley system mounted as photographed in rolling frame, six 1 kg weights, small balancing weights.
Images
Description
The system is initially balanced to account for the weight of the pulleys and rope by adding small weights on the free end of the rope. For every two kilograms hanging from the pulley, the system requires one kilogram hanging from the free end of the rope to obtain equilibrium. Show that deviation from the 2:1 ratio destroys the static equilibrium.
References
Albert A,. Bartlett, What is (or was) White's Pulley?, TPT 14, 13, (1976). Letter to the Editor: Mario Iona, More on White's Pulley, TPT 13, 260 (1976).
-
See pagesb1. center of mass statics
-
See pagesb2. equilibrium of forces & torques
-
See pagesb3. simple machines
-
See pagesb4. elasticity
-
See pagesb1. center of mass statics
-
See pagesb2. equilibrium of forces & torques
-
See pagesb3. simple machines
-
See pagesb4. elasticity