1 Newton's 3rd law: for every action there is a reaction that is... (choose all that apply) A in the same direction B equal in magnitude C opposite in magnitude D in opposite directions

Newton's 3rd law states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object exerts a force of equal magnitude but in the opposite direction on the first object. Let's analyze the options: A. **in the same direction** - This is incorrect. The reaction force is not in the same direction as the action force. B. **equal in magnitude** - This is correct. The forces are equal in magnitude. C. **opposite in magnitude** - This is incorrect. The forces are equal in magnitude, not opposite. D. **in opposite directions** - This is correct. The reaction force acts in the opposite direction to the action force. Therefore, the correct answers are **B** and **D**.