Why is mass important in an object's motion?
A. Influences object's temperature
B. Affects how object responds to forces
C. Determines object's color
D. Impacts object's shape
B. Affects how object responds to forces
Mass is important in an object's motion because it determines how the object responds to forces acting upon it. The greater the mass of an object, the more force is required to accelerate it or change its direction. This is described by Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Therefore, mass is a crucial factor in determining how an object moves and behaves when subjected to external forces.