The discussion revolves around various kinematics problems involving acceleration, velocity, and direction. Participants are exploring equations related to constant acceleration and the implications of vector components in different scenarios.
Some participants have provided hints and guidance on how to approach the problems, particularly in breaking down components and clarifying the use of equations. There is an ongoing exploration of different interpretations of the problems, especially concerning direction and initial conditions.
Participants are working under the constraints of homework assignments, which may limit the information available or the methods they can use. There are also discussions about the assumptions made regarding initial velocities and the direction of acceleration.
Doc Al said:The angle between the sides is not 136, but 44. (But the resulting magnitude is the same.) Draw a picture to clarify the angles involved. I assume "22 degrees to the board" means that the velocity makes a 22 degree angle with the surface of the board.
That's the angle between those velocity vectors, but it's not the angle in the triangle that defines the difference between those two vectors:Byrgg said:How is it 44? The velocities make a v shape with the board, 22 degrees to the board each way. Knowing that the board is 180 degrees, the angle between them should be 180 - (22 + 22), shouldn't it?
If someone's paying attention, about 2 seconds.Byrgg said:How long will it take to get an attachment approved, approximately?
That's OK too.Or could I just use an image hosting site, and post a link to the diagram?