Shaswat Traders

The Action-Reaction Trolley is a purpose-built, low-friction vehicle designed to turn Newton’s Third Law—“For every action there is an equal and opposite reaction”—from abstract theory into a vivid, hands-on experience. Whether accelerating across a laboratory bench when a compressed spring is released or recoiling smoothly as an attached mass is ejected, the trolley lets students see and measure pairs of forces in real time. Manufactured under the Rudravya brand by Chemical World (Shaswat Traders), the apparatus combines classroom durability with research-grade precision, making it equally at home in middle-school science rooms, undergraduate physics labs, and teacher-training institutes.