Projectile Launcher

Used for experiments and demonstrations involving trajectories. Includes a built-in clamp to fasten the launcher to a tabletop, a release latch that can be adjusted and locked to any desired setting, two 70-g steel balls (drilled), and an attached protractor and plumb bob to permit an accurate determination of angle of inclination. Unit is designed with 4 holes spaced 5 cm apart in the edges to allow attachment of item# 751831 Economy Digital Timer and Photogates (not included). Includes instructions.