The ballistic pendulum is easy to use and understand as it provides an excellent demonstration of the conservation of momentum and projectile motion. -- This durable industry standard is made with a heavy cast metal construction that guarantees a long life in the science class. -- The pendulum swings freely on a hardened low-friction bearing, ensuring proper alignment throughout the range of the swing. -- As the ball hits the bob and swings it up, a unique ratchet system freezes the arm at its highest point of swing. The ratchet has a scale for accurately measuring height changes. -- Includes: 1 drilled brass projectile ball and operating instructions. |