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  1. J


    A 10 kg box on a platform which is inclined at 10 degree to the horizontal. The box is at rest relative to the platform. The platform is lowered with a speed increasing at 1.0 m/s2. What is the magnitude of the reaction force of the platform on the box?
  2. J

    log function

    f\left ( x \right )=\frac{ln\left ( x^{2} \right )}{\left | x \right |},x\neq 0. Find (i){f}'\left ( -e \right ) and (ii)\int_{-e}^{-1}f\left ( x \right )dx.
  3. J

    my favourite number

    my favourite number is 1 because it is written almost the same way in many languages. what is yours?
  4. J

    inverted image

    asus K50IE laptop how do you correct the webcam inverted image? Thanks
  5. J

    Largest square

    Find the area of the largest square that can fit inside a regular pentagon of unit side length.
  6. J

    2010 general math exam papers

    Anyone has got a copy? Please
  7. J

    A question on motion

    An object has an acceleration to the right. Which one or more of the following statements is/are correct? A. The object could be moving to the right. B. The object could be moving to the left. C. The object could be moving upwards. D. The object could be moving downwards. E. The object could...