The Relationship Between Mass of Cart and Acceleration: Physics Experiment

For this physics experiment regarding the relationship between the mass of a cart and its acceleration, the fan force on the cart should be kept constant. This allows for direct observation of how changes in mass and acceleration relate without introducing another variable.

In physics experiments, it's crucial to control for certain variables to ensure that the results are valid. In this specific experiment, where you're trying to understand the relationship between the mass of the cart and its acceleration, the variable that you should keep constant is the fan force on the cart.

By keeping the force applied by the fan constant, you're able to observe how changes in the mass of the cart affect its acceleration, and vice versa, without introducing another factor that could skew the results. This principle is based on Isaac Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting upon it and inversely proportional to its mass.