1
Safety Precautions
Do not disassemble, repair, and remodel this product. The warranty will be void.
Do not apply electric voltages over 4 V (maximum allowable input voltage) to the ball
release unit (hereinafter, BRU). Otherwise, the electromagnetic coil of the unit may
ignite and burn out.
This product is for a teacher's demonstration only.
Keep your students away from this product, especially, from the course of launched
ball during demonstration.
Should you find any defect in the product, do not repair it by yourself. Contact your
distributor.
Keep dry. Otherwise, the product can be damaged.
Do not use this product on an uneven surface.
Avoid direct sunlight and high temperatures.
Product's Feature
Compared with conventional type of apparatus, this product better demonstrates an essential and classic physics problem,
known as “the Monkey and the Hunter”, by providing students with high-accuracy collision of a projectile (an aluminum ball
used as a bullet shot by a hunter) with a free-falling object (a plastic ball used as a monkey falling from a tree). Achieved
highly accurate and repeatable collision of a small projectile (an aluminum ball of diameter 25mm) with a small free-falling
object (a plastic ball of diameter 35mm) over the airline distance of around 1500mm.
Specification
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Size after assembly (excluding a support stand): 1,900 × 570 × 720mm
•
Boom: 1,900mm (the full-length rail after two rails is united with each other)
•
Ball release unit: Electromagnetic type (Rated voltage: DC 2.5V, Maximum input voltage: 4.0V)
•
Ball launcher: Spring plunger type
•
Accessories:
o
Free-falling object:
φ
35mm Plastic ball x2 pcs
o
Projectile:
φ
25mm Aluminum ball x2 pcs
o
Metallic ring-shaped plumb connected with a magnet via a kite string (1m) x1 pc
Required equipment (not included, prepare beforehand by yourself): a DC power supply (2.5V recommended, max. 4V,
5A), a support stand
with a clamp to fix a supporting rod (8mm diameter).
