1J Statics of Rigid Bodies

Laded Beam (Instructor version)

Catalog: 
1J40.40E
Location: 
A plank is supported by a bathroom scale at each end. The instructor then walks along the plank while having students note the force measured by the scales.

One Rope and Three Weights

The middle weight is increased.  ASU copyright
Catalog: 
1J30.26
Location: 
Ab6
A rope is tied to a pole and a heavy weight hangs from a pulley at the other end. There are protractors to measure the deflection of the rope. In the middle a small weight is applied which easily moves the heavy weight.

Blackboard force table - Video

demonstration image
Catalog: 
1J30.50
Location: 
3_1
Video Encyclopedia: This looks like a magnetic vertical force board. A circle is marked with angles every 10 degrees.

Roman Arch

Pushing down makes the bridge stronger.
Catalog: 
1J30.901A
Location: 
Ab6
Loose bricks are held in place by weight in Roman Arch. Keystone.

Sail against the wind-Video

demonstration image
Catalog: 
1J30.60B
Location: 
3_1
Video Encyclopedia : Use a skateboard cart with a foam core sail

Loaded Beam/Bridge?

Catalog: 
1J40.40B
Location: 
Ac2
Non-concurrent forces app.(4 protractors)

Egg crusher - Video

demonstration image
Catalog: 
1J30.75
Location: 
3_1
Video Encyclopedia :A raw egg can be squeezed between two hard foam rubber pads with a force of over 150 lbs.

Waddling Duck

Tap the ducks tail and it waddles down the incline.
Catalog: 
1J11.101
Location: 
Ab5
The toy duck waddles down an incline due to the position of the center of mass.

Meter stick balance

Catalog: 
1J40.20A
Location: 
Ab2
Meter stick balance (white plastic)

Arm model - Video

demonstration image
Catalog: 
1J40.75
Location: 
3_1
Video Encyclopedia :Use an arm model simulating both biceps and triceps muscles to throw a ball.

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