Question

According to Newton's second law of motion, force is directly proportional to the rate of change of momentum provided

• A. velocity of body remains constant
• B. mass of body remains constant
• C. acceleration of body remains constant
• D. speed of body remains constant

Answer 1

The correct option is B

mass of body remains constant

Newton's second law states that the rate of change of momentum of an object is directly proportional to the net force acting on it, provided that the mass of the body is kept constant. It gives the mathematical expression of force.