Recent content by Ihsahn

OK, this problem is causing serious... well, problems! (NB, I'm not sure whether this classes as 'College' or 'K-12', I've posted in both, so could someone with the power to delete the 'K-12' one? Thanks) A ring of mass 3m can slide on a fixed smooth vertical wire. The ring is attached to...

Again, sorry if this sounds stupid; We've always evaluated (for example) V_x as V cos [FONT=times new roman]a and V_y as V sin [FONT=times new roman]a ?? The only thing I can think of from your suggestion is the use of trig identities? Do they play a part? I'm obviously missing...

Sorry if that was unclear, I meant 21 multiplied by the square root of 2. Doc Al, I don't quite follow... we haven't covered conservation of energy... and I'm unsure how to obtain the x and y components given that we have no angle of projection? Forgive me if its something obvious or simple...

Ok, having studied projectiles over the past few weeks, reaching the "Equation for the path of a projectile stage," I've been presented with the following question. As far as I can see, there isn't enough info to answer the question (unless, of course, its one of those simultaneous equation...