The equation "F=ma" represents Newton's second law of motion, which states that the force F acting on an object is equal to the mass m of that object multiplied by its acceleration a. This means that the more mass an object has, the more force is needed to accelerate it. In practical terms, if you push a shopping cart, the force you apply will determine how quickly it speeds up. A heavier cart requires more force to achieve the same acceleration as a lighter one. This relationship helps us understand how objects move in response to applied forces.