Recent content by quis

Hey, can anyone tell me a good site that has practice physics questions that includes the answers? I am studying by distance education and I am only given about 5 questions per new lesson/exercise. I need more practice then that.! working on an introduction to vectors at the moment. So high...

Thanks for following up, yeh it's the compass system, that is how it's written in my textbook. so if that don't match the components I've written does that mean that I've got then the wrong way around, I mean using Cos and sine at the wrong times? please explain.

Details of working sure, sorry, new to this. A cyclist undergoes three successive displacements of 120m at N40E followed by 82m at S72E and finally 195m at S35W. Vetor::::::X component ::::::::::: Y Component 120m:::120 cos 40 = 91.9 ::::: 120 sin 40 = 77.13 (ie NE) 82m::::82 cos 72 =...

hey, I've just started physics (yr 11&12 by distance education) and already stuck. So the very basic Question is: When working out multiple vectors, I understand that it is necessary to break them down into components. (I've been taught to graph the x component and y component for each vector...