Recent content by LostAce

@MrAnchovy: How do I get the weight component for T = w x sin40? Is this diagram correct?

Yeah but the rope has to make a 40 degree angle with the horizontal.

Can you explain how ( if that were the case)? Even with this condition I still don't understand how the (book) solution came to be.

Thank you

And how would you solve it?

As you say '' you can infer that the rock face is vertical and that the climber forms a right angle with the rope" let's assume all the conditions you mentioned were a given, then how would you go about solving the problem i.e. would there be enough information to solve it?

Homework Statement A 65kg rock climber is abseiling down a rock, consider the situation when he's in equilibrium and standing at an angle on the surface of the rock, hanging from a rope. The rope is at an angle of 40 degrees to the horizontal, calculate the tension in the rope Homework...

So I've been told recently, that I will be participating in the "British Olympiad in Astronomy and Astrophysics Competition", which I am really excited about. I took the British Physics Olympiad Paper earlier this year, and feel like I could've done better.So because I am quite new to Astronomy...

Is this because friction is neglected? But If I push the sack of potatoes, surely there is a force acting on it?

This would mean I should calculate GPE only.? (e.g. 5 x 10 x 3 =150) What about the other 4m? Further explanation please as to why I can neglect the other distance ( Diagram would be nice :D)

5. Point Q is 3m above and 4m to the North of Point P. Ignoring friction how much energy does it take to move a 5kg sack of potatoes from point P to point Q? These are multiple choice questions of the exam, so in the mark scheme it only says: A, B ... The question paper can be found...