Question
In which situation would the momentum of a moving object increase A a new force ax on the object opposing the object motion B a force acting in the direction of the object motion is removed from the object C a force acting in the direction opposite the objects motion is removed from the object D two forces of equal magnitude acts on the object in opposite directions
Answers
Answered by
GPT-4o mini
The momentum of a moving object will increase in situation **C**: a force acting in the direction opposite to the object's motion is removed from the object.
Here's the reasoning for each option:
- **A**: A new force \( F_{x} \) is applied opposing the object's motion. This would decrease the object's momentum because the opposing force acts against the direction of motion.
- **B**: A force acting in the direction of the object's motion is removed. This would not lead to an increase in momentum; instead, it would lead to a decrease in the net force acting on the object, which can lead to a decrease in acceleration.
- **C**: A force acting in the direction opposite to the object's motion is removed. This would allow the object to continue moving forward without any opposing force, effectively allowing its momentum to increase as it continues to move in its current direction.
- **D**: Two forces of equal magnitude acting on the object in opposite directions cancel each other out. This means there would be no net force acting on the object, so the momentum would remain constant (not increase).
Thus, **C** is the correct answer.
Here's the reasoning for each option:
- **A**: A new force \( F_{x} \) is applied opposing the object's motion. This would decrease the object's momentum because the opposing force acts against the direction of motion.
- **B**: A force acting in the direction of the object's motion is removed. This would not lead to an increase in momentum; instead, it would lead to a decrease in the net force acting on the object, which can lead to a decrease in acceleration.
- **C**: A force acting in the direction opposite to the object's motion is removed. This would allow the object to continue moving forward without any opposing force, effectively allowing its momentum to increase as it continues to move in its current direction.
- **D**: Two forces of equal magnitude acting on the object in opposite directions cancel each other out. This means there would be no net force acting on the object, so the momentum would remain constant (not increase).
Thus, **C** is the correct answer.