What is the relationship between mass and speed in the context of physics?

In physics, the relationship between mass and speed is described by Newton's second law of motion. This law states that the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass. In simpler terms, the greater the mass of an object, the more force is needed to accelerate it to a certain speed. Conversely, a lighter object requires less force to achieve the same speed.