Consider an object with several forces acting on it. Which of the following stat
ID: 1348081 • Letter: C
Question
Consider an object with several forces acting on it. Which of the following statements is true?
A. The momentum of the object is conserved if all of the forces are conservative.
B. The momentum of the object is convserved if all forces add up to zero net force.
C. Answers A and B are correct.
D. Momentum conservation only makes sense if at least two objects are considered.
Consider an object with several forces acting on it. Which of the following statements is true?
A. The momentum of the object is conserved if all of the forces are conservative.
B. The momentum of the object is convserved if all forces add up to zero net force.
C. Answers A and B are correct.
D. Momentum conservation only makes sense if at least two objects are considered.
Explanation / Answer
Here ,
the correct statement is
B. The momentum of the object is convserved if all forces add up to zero net force.
Using second law of motion
rate of change in momentum = net force
as the net force on the object is zero
rate of change in momentum = 0
hence , the momentum of the object is conserved