A stressed out mom just purchased a cup of Starbucks coffee. The bus she is riding on to work goes around a sharp curve. Even though she holds the cup still the coffee still splashed out. Which word explains this phenomenon

The word that explains this phenomenon is "inertia".

The phenomenon that explains why the coffee splashed out of the cup despite the mom holding it still is called inertia. Inertia is the tendency of an object to resist a change in its state of motion. When the bus goes around a sharp curve, the mom and the coffee cup are subjected to an inward force due to the change in direction. Because of inertia, the coffee inside the cup continues to move in a straight path, causing it to spill out of the cup.

The word that explains this phenomenon is "inertia". Inertia refers to the tendency of an object to resist a change in its motion. In this case, when the bus goes around a sharp curve, the mom and her coffee cup experience a change in their motion. Despite the mom holding the cup still, the coffee still splashes out. This is because the coffee, due to its inertia, wants to maintain its state of motion and continues moving in a straight line even as the bus curves. As a result, the coffee spills out of the cup.