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YumYum247

  • one year ago

Yelp

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  1. Abhisar
    • one year ago
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    Yelp you with what?

  2. YumYum247
    • one year ago
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    25) Use Google maps to find the displacement of the truck when it stops at the Shaw Festival Theatre. Use the scale on the map (bottom left corner) to establish the magnitude of the displacement and include a rough estimate of direction. Then calculate the average velocity of the truck.

  3. YumYum247
    • one year ago
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  4. YumYum247
    • one year ago
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    the actual distance between the two points is 135KM.

  5. YumYum247
    • one year ago
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    I can't figure out the displacement part tho since the whole trip includes all sorts of ups and downs, twists and turns...........:"(

  6. YumYum247
    • one year ago
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    @IrishBoy123 Please Help!!!

  7. IrishBoy123
    • one year ago
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    displacement is not the same as distance are you studying vectors maybe if i run to the shop and back 100 times, my displacement when i get back will be zero i will have run 2 x 100 x the distance from the shop my average speed will be that distance divided by the time it took my average velocity will be zero because back and forward velocities cancel out does that make sense?

  8. YumYum247
    • one year ago
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    Vectors aren't introduced in this chapter......I'm dealing with simple displacement like you just mentioned above.........dear i know how to calculate all that but the only thing that's been confusing me is how do i calculate the displacement of the truck in those winding and twisting roads.......??

  9. YumYum247
    • one year ago
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    Do you want me to give you a quick example of what i'm dealing with here???? let me upload another question from the same test........

  10. YumYum247
    • one year ago
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  11. YumYum247
    • one year ago
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    That's the first part of the question. (picture above)

  12. IrishBoy123
    • one year ago
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    this is a war or words! but also of underlying ideas! for the first one you posted, if B on the map is the theatre, the *displacement* is a vector whose magnitude is the distance AB on the map, and who direction is whatever you get off that map as an angle say to the North-South direction. its asks you to calculate its magnitude and roughly estimate its direction. and from that to calculate average *velocity*. which will be displacement/ time and in the same direction. the second one talks about *distance* which you correctly measured as the area under the graph. and then it asks for average *speed*. make any more sense? or just makes it worse?!?!

  13. YumYum247
    • one year ago
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    Point B is the final destination of the Truck (Shaw festival Theater), the most i've done in this chapter is add and subtract out opposite directions.....say if i walk 10m (north) and 5m (south), my displacement would be 5m (north). So in that sort of manner how do i calculate he displacement of the entire journey..... Point A is the Toroto Hall and Point B is the Shaw festival theater.

  14. YumYum247
    • one year ago
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    where the journey ends.

  15. YumYum247
    • one year ago
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    that's what i'm confused about, because the whole journey takes all sorts of turns, first it goes West, then gradually goes to South and at the end the truck is in the east with respect to the reference point.

  16. YumYum247
    • one year ago
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    acutally south east, if i were to draw on a proper scale.

  17. IrishBoy123
    • one year ago
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    measure A - B , as the crow flies. ie straight line. that is the magnitude of the displacement. ie the amount of the displacement.

  18. YumYum247
    • one year ago
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    Oh i got it.... so that distance would be the displacement?????? A direct line from point A to Point B.

  19. IrishBoy123
    • one year ago
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    the turns cancel each other out. |dw:1440610508815:dw|

  20. IrishBoy123
    • one year ago
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    yes

  21. YumYum247
    • one year ago
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    wait if we were to do that experiment in more of a simpler way how would you prove that your method is right.... prove with a simpler example....

  22. YumYum247
    • one year ago
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    so your saying that if i go lets say 45deg from North to east for 50 meters, and then go straigh to west for 90m, and measure my displacement from the origin to the final destination...... all i have to do is draw a straight line....???? like this...

  23. YumYum247
    • one year ago
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    |dw:1440621615856:dw|

  24. YumYum247
    • one year ago
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    if we consider our drawing is to the scale.....

  25. IrishBoy123
    • one year ago
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    https://gyazo.com/c25286f3653031d4ebe5bb124f007266

  26. IrishBoy123
    • one year ago
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    yes you split your motion into movements in the x direction and motions in the y direction and add up the components

  27. IrishBoy123
    • one year ago
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    that's sounds complicated, just drawing a line between start and end point gives you the final displacement

  28. YumYum247
    • one year ago
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    ok I didn't know that.......Thanks!!!!

  29. YumYum247
    • one year ago
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    wouldn't that be the Net displacement?? from point A to point B

  30. IrishBoy123
    • one year ago
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    it's displacement you can ad net in if you feel more comfortable but that is displacement in this context eg the displacement of a ship is its weight in that particular context but here where you are effectively looking at vectors, so displacement

  31. YumYum247
    • one year ago
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    Thanks man you saved my life!!! :")

  32. IrishBoy123
    • one year ago
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    always glad to yelp

  33. YumYum247
    • one year ago
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    You know they say, helping one person is like helping the entire humanity. Your doing a great job man, stay blessed!!! :")

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