• Small and easy to use
• Great for classroom demonstrations
• Can clamp to a table or stand

Help students to visualize and grasp Newton’s Second Law of Motion! This sturdy unit demonstrates that a horizontally projected ball and vertically dropped ball land at the same time. The spring device can propel a ball up to 48 inches from its starting point. It comes with a detachable rod for clamping to a table or stand. Instructions included.