# Statics of Rigid Bodies

## B2-01: SUM OF FORCES IN A LINE

Purpose: Demonstrate that forces in one dimension add algebraically

## B1-24: CENTER OF MASS - CARTS ON BALANCE BOARD

Purpose: Show that the center of mass may remain at rest during motion within the system.

## B1-22: CENTER OF GRAVITY USING TEETER TOTTER

Purpose: Determine the center of gravity of the human body

## B1-21: BALANCE BEAM - VARIATION ON THE TIGHTROPE WALKER

Purpose: Show how arms or a pole are used to obtain greater stability

## B1-17: CENTER OF MASS - STICKS

Purpose: Illustrate the center of mass in a surprising way

## B1-16: CORBELED ARCH

Purpose: Illustrate how the center of mass affects the stability of an arch

## B1-15: TOPPLING CYLINDERS

Purpose: Illustrate stable and unstable equilibrium in a surprising way

## B1-14: CENTER OF MASS - BOTTLE

Purpose: Illustrate the center of mass in a surprising way

## B1-13: CENTER OF MASS - FORK AND SPOON ON TOOTHPICK

Purpose: Illustrate the center of mass in a surprising way

## B1-12: CENTER OF MASS - HINGED STICK PARADOX

Purpose: Illustrate the center of mass in a surprising way

## B1-11: BALANCE MAN

Purpose: Illustrate stable equilibrium

## B1-09: CENTER OF MASS - TRIANGLE

Purpose: Demonstrate the process of locating the center of mass

## B1-08: STATES OF EQUILIBRIUM - CONE

Purpose: Illustrate stable, unstable, and neutral equilibrium

## B1-05: CENTER OF MASS - PLUMBER'S HELPER

Purpose: Locate the center of mass of an irregular object

## B1-03: CENTER OF MASS - LEANING TOWER ON INCLINED PLANE

Purpose: Demonstrate equilibrium when its center of mass is above its base

## B1-02: CENTER OF MASS - LEANING TOWER

Purpose: Demonstrate the effect of center of mass location

## B3-12 PULLEY - MECHANICAL ADVANTAGE

Category: B3 Simple Machines
Purpose: Illustrate pulley systems

## C6-01 INCLINED PLANE - FRICTION BOX AND WEIGHTS

Category: C6 Friction
Purpose: Shows that the coefficient of friction does not depend upon the mass of the object although the frictional force does.

## C3-03 INERTIA - MASSES HANGING IN SERIES

Purpose: Dramatically demonstrate inertia

## B4-03: SPRINGS IN SERIES AND PARALLEL

Category: B4 Elasticity
Purpose: Show static combinations of springs
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• #### D2-01 RING AND DISC ON INCLINED PLANE

Demonstrates effect of rotational inertia on acceleration of an object Read More
• #### D2-02: Miscellaneous Rolling Bodies On Inclined Plane

Demonstrates effect of rotational inertia on acceleration of an object Read More
• #### D2-03: CANS ON INCLINED PLANE - WITH AND WITHOUT WATER

Illustrate the effect of moment of inertia on rolling acceleration. Read More
• #### D2-04: MOMENT OF INERTIA RODS

Demonstrate dynamic effects of the center of mass and moment of inertia Read More
• #### D2-05: DUMBBELL - VARIABLE MOMENT OF INERTIA

Demonstrate the effect of moment of inertia. Read More
• #### D2-11: HINGED STICK AND FALLING BALL

Application of the rotational analog of Newton's second law. Read More
• #### D2-12: TOPPLING CHIMNEY

Demonstrate how a toppling chimney breaks up. Read More
• #### D2-13: RACING PENDULA

Illustrate in a counter-intuitive way the effect of moment of inertia on rotational acceleration. Read More
• #### D2-21: CENTER OF PERCUSSION - BAT AND MALLET

Demonstrate the center of percussion using a baseball bat. Read More
• #### D2-31 OBERBECK CROSS

Illustrates rotational analog of Newton's second law of motion Read More
• #### D2-32: AIR TABLE - LINEAR AND ANGULAR ACCEL OF A DISC

Illustrate the accelerating disc problem. Read More
• #### D2-41: MOMENTS OF INERTIA ABOUT THREE PRINCIPAL AXES

Illustrate the three principal axes of a thin aluminum plate. Read More
• #### D2-42: MOMENT OF INERTIA -TORSIONAL CHAIR AND BOARD

Demonstrate moment of inertia using the torsional chair. Read More
• #### D2-43: MOMENT OF INERTIA - TORSIONAL CHAIR AND WEIGHTS

Demonstrate the effect of moment of inertia. Read More
• #### D2-51: BICYCLE WHEEL PENDULUM

Demonstrate the Parallel Axis Theorem. Read More
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