Recent content by carleon

Thanks for responding! So I wrote an equation, which simplifies to P(x,y) = 45000-40x-560y, but I still have the same problems, where, fx = -40 and fy = -560. So how do I find the critical points?

1. Problem: A manufacturer makes two models of an item, standard and deluxe. It costs $40 to manufacture the standard model, and $60 for the deluxe. A market research firm estimates that if the standard model is priced at x dollars, and the deluxe at y dollars, then the manufacturer will sell...

I got it! α=1.68rad/s^2 Thanks a bunch. :biggrin:

Thanks, but since mass isn't given, how would I find F=ma?

Hi, thanks for taking a look! A toy train rolls around a horizontal 1.4-m-diameter track. The coefficient of rolling friction is 0.12. (a) What is the magnitude of the train's angular acceleration after it is released? (b) How long does it take the train to stop if it's released with an...