Mechanics

Just leave a comment here and someone from the Maths team will try to get back to you asap.

Responses

  1. Hiya, can someone please help me with one of the exam questions, its in Paper E, Qu 6 b)

    I realised I had to use s = ut + 1/2 at^2 but from there on, in the mark scheme they start using an equality sign… I don’t understand! :-(

  2. Do you mean inequality sign?

    That’s because the ball has to be MORE than 2m above the ground, not exactly 2m.

  3. Lol, yup thats the one!

    Oh right, and then I’ve got to be careful about the changing signs thing don’t I…

  4. Find the times when s=2: on the way up and on the way down. It’s > 2m between these two times.

  5. Could someone please help me with Q6 a) of the Jan 07 Mech paper?

    I got right down to

    Pcos20 = u (30×9.8 – Psin20)

    but don’t understand how they have managed to solve P from there in the mark scheme? It looks way too complicated!

  6. Emma,

    Multiply out the bracket:

    pcos20 = 30*9.8u – uPsin20

    Now take uPsin20 over to the other side. You’ll then have two terms containing P as a common factor.

    Hope this helps

    Mr R

  7. How did M1 go?

    JT

  8. Hey :-) It was ok, well not great but ok… I think I might have to retake it again in the summer :(
    But thank you so much for your help this morning, you were a life saver… bear with me with the scrabble, now I can concentrate on it fully I want to work out a fantastic word to take you by storm!

    Have a lovely weekend :-D

  9. has anyone got the mark shceme for M1 November 2004?

  10. I could find the mark schemes for M1 on mr reidels website like 2 days ago and now it looks like their gone, am i being really stupid or have they gone? and if so is there any where i can get a november 2002 mark scheme?

  11. School?

  12. Fiona, what about looking on the Edexcel site?

    MW

  13. Website only goes back to 2005; that’s why I said school.

  14. Aaaah. Okay then.

    MW

  15. not a question, but a giant big thanks for all the mechanics help, i was gonna come find you both but then realised u would probs be teaching

    but yeah thanks :)

  16. How did it go?

  17. better than b4 me thinks tho *shrugs* no idea til results


Leave a response

Your response: