3B Scientific Launcher S - Manual

3B SCIENTIFIC® PHYSICS
1
Launcher S U8400930
Instruction sheet
04/09 THL/ALF
1
Rear magnetic holder with
ball
2 Release
trigger
3 Front magnetic holder with
ball
4 Locking
screw
5 Angle scale with plumbline
1. Safety instructions
The acceleration of the ball is quite small, and
therefore there is no risk of injuries. However, the
launcher must not be directed towards people
when it is loaded.
The target area of the ball must always be
uncluttered and clearly visible.
There must be no breakable articles in the target
area of the launcher.
• Ensure that there is a clear distance of at least
4 m in front of the launcher.
• Remove all breakable articles from the area in
front of the launcher.
When it is released, the trigger flies forward
rapidly.
• Only hold the part of the launcher behind the
release trigger.
2. Description
The launcher S is used for investigating vertical,
oblique and horizontal throwing trajectories, and
for demonstrating the independent superposition
of horizontal and vertical components of motion.
A choice can be made between three different
launching accelerations by engaging the release
trigger in the corresponding notch. The angle of
elevation of the launch is continuously adjustable
and can be read on the angle scale by means of a
plumb-line.
Until the launch, the ball is held magnetically at
the launch position. When the angle is adjusted the
launch position remains unchanged, as the fulcrum
is on the horizontal axis of the ball. Thus, changing
the angle has no effect on the height from which
launching occurs. In the case of horizontal
launching of a ball, a second ball can be released
simultaneously from the rear end of the launcher
beam in free fall, and this lands on the table at the
same time as the launched ball.