Recent content by hisoko

  1. H

    Tricky precalculus word problem

    Homework Statement I need to figure out the formula and answer for this word problem. it says "A few years ago at her birthday party, mary said take the year it will be 3 decades from now. Subtract the year of my birth and add the year it was one century ago. You now have my birth year...
  2. H

    Need help please with pushing a block question

    The site is down for my homework assignment, but that is indeed all they gave me, they only told me the force that is pushed against the block, the angle, and the weight of the block(1000N) and I am to find mu and acceleration of the block, They then say what is the acceleration of the block if...
  3. H

    Need help please with pushing a block question

    http://img94.imageshack.us/img94/5889/physics.jpg so I completely drew my work, as you can I need to find out the coeffiect of mu and the acceleration of the block. I did the Y and X forces and am stuck, because I have 2 unknowns with the X formula even if I sub in the Y into it. Am I...
  4. H

    Help with vector kinematics question

    Yes I tried it too, i tried so many times, it doesn't get the answer. and with only 2 known things, there really is only one way to go with it because you will have to do the vertical part first using gravity and that answer doesn't work out. z_z lol
  5. H

    Help with vector kinematics question

    http://i58.photobucket.com/albums/g280/hisokeee/aa.png so since the ball is hit 1m above the ground, i will just ignore that and the 21m height fence and just make it a projectile of a ball from ground to the top of a 20m fence I only know the gravity, the height of fence and distance to...
  6. H

    One problem with 3d x,y,z resultant questions

    So this first question http://tinypic.com/view.php?pic=2qls4s4&s=4 I figured out F1 X,Y,Z but for F2 I cannot seem to figure it out at all, it seems impossible. I can only figure out the Y axis but not the X and Z, any ideas?
  7. H

    Not sure if this belongs here, but if someone would be kind enough

    To add me on msn, who have pretty basic knowledge of physics grade 12 level? I haven't taken any physics at all in 2 years and I am going to university soon, I been reviewing some exam questions from the past posted by my government, however they only include the answer obviously and not how to...
  8. H

    How to Calculate Time and Displacement for a Horizontally Thrown Stone?

    okay and to find the displacment? (distance from the base of the cliff to where the stone lands) from knowing only the height of cliff and speed of rock
  9. H

    How to Calculate Time and Displacement for a Horizontally Thrown Stone?

    Hi i need to know the formula to solve this question stone is thrown off cliff horizontally at a speed ??m/s from the top of a cliff that's ??m high. How do i find the time it takes for the stone to touch the ground?
Back
Top