The discussion revolves around a problem involving a 200 g ball attached to a spring oscillating on a frictionless table. Participants are tasked with determining the amplitude of oscillation given the spring constant and the ball's velocity at a specific position.
Some participants have provided insights into the implications of sign choices in their calculations, while others have noted that certain steps may not be necessary for finding the amplitude. The conversation indicates a productive exploration of the problem without reaching a definitive consensus.
There is mention of multiple potential solutions for time, which raises questions about the assumptions made during the calculations. Additionally, the relevance of trigonometric identities in the context of the problem is noted.
You do not show your working, but there should be multiple solutions for t. Some will produce a positive A and some negative. What do you conclude from that?osten said:I found that t = 0.137s, and A turned out to be negative, so it was probably wrong.
Good. Do you understand why the choice of solution for t can switch the sign?osten said:Thanks! I ignored the signs and got the right answer.