Which force is responsible for cargo dumping when a stacker suddenly stops while carrying it?

In the context of a stacker suddenly stopping while carrying a load, the force responsible for the cargo dumping is inertial force. When the stacker, which is in motion, comes to an abrupt halt, the cargo experiences a tendency to continue moving forward due to its inertia. This is a property described by Newton's first law of motion, where an object in motion stays in motion unless acted upon by an external force. As the stacker stops, the cargo does not instantly adjust to this change in motion and therefore continues on its trajectory, which can lead to it dumping or falling off.

Understanding inertial force is crucial for operators because it implies that proper load stabilization and stopping techniques are necessary to prevent accidents or cargo loss. In contrast, gravitational force acts on the cargo downward, frictional force pertains to the resistance between surfaces (like the load and the stacker), and centrifugal force is related to circular motion, neither of which directly explain the phenomenon of cargo dumping in the scenario provided. This understanding underscores the importance of safe operating practices in forklift operation to mitigate the risks associated with inertial forces.