1J30 Resolution of Forces

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.

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.

Load on a removable incline - Video

demonstration image
Catalog: 
1J30.10B
Location: 
3_1
Video Encyclopedia: Place a cart on a removable 30 degree incline.

Clothesline - Video

demonstration image
Catalog: 
1J30.25
Location: 
3_1
Video Encyclopedia: Hang a 5 newton weight from a line and pull on one end of the line with a spring scale.

Horizontal boom - Video

demonstration image
Catalog: 
1J30.40
Location: 
3_1
Video Encyclopedia :The tension in the wire is measured with a spring scale for two different boom structures.

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.

Sail against the wind-Video

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

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.

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.

Projection force table

Catalog: 
1J30.52
Location: 
Ac1
Used with an overhead projector, the degree scale and strings are shadow projected.