Recent content by amazingphysics2255

  1. A

    Finding the velocity of a skier

    How does this help me solve my 3 questions?
  2. A

    Finding the velocity of a skier

    They way you've phrased the question I'm assuming it's the opposite to what I've put. So If I was thinking East should be bigger than I'm probably wrong and It's North.
  3. A

    Finding the velocity of a skier

    Problem Statement: 1.I'm asked to find the northerly and easterly velocity of kite skier. the skier is moving 25 ms^1 in the N 25degrre E direction. 2. Wind from the west makes the skier accelerate to the east at 2.0ms^1 for 1.8s CAlculate the new velocity. 3. Use the answer from (1) to...
  4. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    So I could write the displacement of the car is 130.4km and 32.6degrees S of W?
  5. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    Can someone draw a vector diagram so I can visualize this also? Note, the question doesn't ask for one to be drawn ( I added it to the question too, wasn't in the original question given to me). I have one on paper but don't know how to draw one on this site(can you?). Mine looks like a...
  6. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    Yeah! 130.4km . I see what he means technically your displacement would just be 110km S and 70kmW
  7. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    No, I haven't come across this as of yet. And the post by haruspex that says you can write your answer as 110km S and 70km W?
  8. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    Ok. So just south 110km and west 70km. Anything else I should know?
  9. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    130.38 so 130.4 km? is this the displacement? angles and trig are not needed as far as I know.
  10. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    I know what the Pythagorean theorem is $$a^2+b^2=c^2$$I've deleted my previous post as it was unclear. I meant how do I use this in the Pythagorean theorem?
  11. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    Fixed.
  12. A

    How Do I Calculate Displacement for Vectors Pointing South and West?

    I have drawn a arrow pointing straight down (South) 110km and an arrow off that to the right(west) 70km.I know that the distance of the journey would be 180km. How do I go about finding the displacement?
  13. A

    Half-Life Problem: Solve w/o Given Amount of Sample

    I just asked it's not meant to be solved. Like this, they just want me to discuss.
  14. A

    Half-Life Problem: Solve w/o Given Amount of Sample

    I don't know if this help but I figured For strontium you have the function $$f(t)=100e^{ \frac{\ln(0.5)}{29 \times 365}}$$ as for your question, I'm not going to lie I don't fully understand it as to why I haven't answered it
  15. A

    Half-Life Problem: Solve w/o Given Amount of Sample

    So I need to find how many on average will decay in the dt? and dt is not 8 days is it?