Maths
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Re: Maths
Do anybody has the official answer to this question provided by the CSSE. If this question is not accurate we should bring this to the notice of the CSSE so that the same kind of mistakes will not take place in the future. If anybody in the forum has the official answer, I would be thankful to you to post it.
Re: Maths
Where did you get the paper from, he you haven't got the marking scheme with it?pahee wrote:Do anybody has the official answer to this question provided by the CSSE. If this question is not accurate we should bring this to the notice of the CSSE so that the same kind of mistakes will not take place in the future. If anybody in the forum has the official answer, I would be thankful to you to post it.
Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.Groucho Marx
Re: Maths
How can you have a period of restitution of almost 0.5 second then proceed on your way with a bendy rope ???Guest55 wrote:SHM would not be a 'perfect description' as rope is not 'light' and the tying [ie the attachment] of the rope would bring in external forces.
However, I agree that the question is poor ..
All the kinetic energy would be imparted to where the rope it is attached to the branch.It is impossible - the rope could snag on the branch and impart some energy to the branch and and some could be imparted to the forward motion of the child but the graph would look even more odd ! the symmetry of the graph suggests otherwise.
Listen, I have hours under my belt of my misspent childhood swinging from branches by threadbare ropes , I know what I am talking about from experience .
