Question

Which of the following statements are true? Select all correct responses. Choose all that apply. Choose all that apply. The total momentum of an isolated system is constant. The total momentum of any number of particles is equal to the algebraic sum of the momenta of the individual particles. The vector sum of forces acting on a particle equals the rate of change of velocity of the particle with respect to time. The vector sum of forces acting on a particle equals the rate of change of momentum of the particle with respect to time. The total momentum of any system is constant. The total momentum of any number of particles is equal to the vector sum of the momenta of the individual particles.

Answer 1

Answer;

-The total momentum of an isolated system is constant.

-The total momentum of any number of particles is equal to the vector sum of the momenta of the individual particles.

-The vector sum of forces acting on a particle equals the rate of change of momentum of the particle with respect to time.

Explanation;

• Momentum is a vector quantity, and therefore we need to use vector addition when summing together the momenta of the multiple bodies which make up a system.
• The vector sum of forces acting on a particle is equivalent to the rate of change of momentum of the particle with respect to time. This is according to the Newton's second Law of motion. In mathematical terms, ֿF = d ֿp/dt, that is F= ma.
• According to the Law of conservation of Momentum, or a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.