The discussion revolves around a two-dimensional impulse problem involving an object with a mass of 5.0 kg moving at 4.0 m/s north when a 30 Ns impulse is applied at an angle of 45 degrees north of west. Participants are exploring the implications of the vector direction in relation to the problem's setup.
The discussion is ongoing, with participants seeking clarification on the interpretation of vector directions. Some guidance has been offered regarding the need for clearer communication of the steps taken in the problem-solving process, but no consensus has been reached regarding the correct interpretation of the vectors.
There is an indication that the answer key may present a different interpretation of the vector direction, which is causing confusion among participants. The original poster has not provided detailed steps, which may be contributing to the uncertainty in the discussion.
We can't tell what's puzzling you unless you post the actual steps in the working and indicate what you consider to be the flip.rusty711 said:I understand the process until solving for the angle. Why does the 30Ns vector get flipped?
haruspex said:We can't tell what's puzzling you unless you post the actual steps in the working and indicate what you consider to be the flip.
I still can't tell whether it is you or the answer key that has it backwards. Can you describe in words how you interpreted the given direction?rusty711 said:I drew the two vectors how they were given and solved for the resultant and the angle using cos law and sine law. But, in the answer key, the 30Ns vector was drawn reversed resulting in a different angle. Why is this?