SUNY Geneseo Department of Physics and Astronomy
Analytical Physics I Laboratory (Phys 124) Equipment Photographs
Projectile Motion
This is the projectile launcher: a hollow
tube with a spring inside. It has 3 launch
speeds; use the fastest setting. Pull the
yellow string perpendicularly to the tube to
launch a shot.
The plumb bob shows you the launch
angle. The launcher will move around after
each lunch, so you’ll have to be careful to
reposition the launcher and verify the angle
before each shot.
Also, you need to make sure that your shot
trajectory is perfectly parallel to the chalk
board.
The inset shows the cannonball: they are
steel balls about 1 inch in diameter. Don’t
lose them!
To load the cannon, drop a ball in
the tube, and then push it down
all the way using the plastic
ramrod shown here. Push it all
the way in to get the fast setting.
