Results 1 to 7 of 7

Thread: Easy physics question (3 rep)

  1. #1
    paris hilton's Avatar
    Join Date
    Aug 2012
    Gender
    Posts
    182
    Thanks
    181
    Thanked 14 Times in 13 Posts


    Downloads
    14
    Uploads
    0
    Mentioned
    15 Post(s)
    Time Online
    8 d 12 h 43 m
    Avg. Time Online
    6 m
    Rep Power
    6

    Easy physics question (3 rep)

    A jetliner has a cruising air speed of 620mph relative to the air.

    Part B
    How long does it take this plane to fly round-trip from San Francisco to Chicago, an east–west flight of 2000 miles each way, if the wind is blowing at 120mph from the west to the east?



    I've tried 8 hours.
    and 7.225 hours.


    Help

  2. #2
    Banned
    Join Date
    Jan 2013
    Gender
    Posts
    7
    Thanks
    747
    Thanked 1,255 Times in 692 Posts


    Downloads
    86
    Uploads
    0
    Mentioned
    464 Post(s)
    Time Online
    70 d 14 h 40 m
    Avg. Time Online
    56 m
    Rep Power
    0
    620 + 120 one-way = 740
    620 - 120 one-way = 480

    2000/740 mph = 2.70
    2000/480 mph = 4.16

    = 6.86 hours ~ 6 hours 51 minutes.

  3. #3
    paris hilton's Avatar
    Join Date
    Aug 2012
    Gender
    Posts
    182
    Thanks
    181
    Thanked 14 Times in 13 Posts


    Downloads
    14
    Uploads
    0
    Mentioned
    15 Post(s)
    Time Online
    8 d 12 h 43 m
    Avg. Time Online
    6 m
    Rep Power
    6
    620 - 120 one-way = 480


    is 500

    ---------- Post added at 12:36 PM ---------- Previous post was at 12:35 PM ----------

    i got 6.7

    your method makes sense

  4. #4
    Banned
    Join Date
    Jan 2013
    Gender
    Posts
    7
    Thanks
    747
    Thanked 1,255 Times in 692 Posts


    Downloads
    86
    Uploads
    0
    Mentioned
    464 Post(s)
    Time Online
    70 d 14 h 40 m
    Avg. Time Online
    56 m
    Rep Power
    0
    Don't judge me. I just woke up five minutes ago. <3 But yeah, the method is definitely correct. I promise.

  5. #5
    paris hilton's Avatar
    Join Date
    Aug 2012
    Gender
    Posts
    182
    Thanks
    181
    Thanked 14 Times in 13 Posts


    Downloads
    14
    Uploads
    0
    Mentioned
    15 Post(s)
    Time Online
    8 d 12 h 43 m
    Avg. Time Online
    6 m
    Rep Power
    6
    im scared, i use 2 attemps on my online homework, and the next is my last ):


    but ill have a friend enter it for me to see if it right later.

    ill give you rep

    are you in any Physics classes

  6. #6
    Banned
    Join Date
    Jan 2013
    Gender
    Posts
    7
    Thanks
    747
    Thanked 1,255 Times in 692 Posts


    Downloads
    86
    Uploads
    0
    Mentioned
    464 Post(s)
    Time Online
    70 d 14 h 40 m
    Avg. Time Online
    56 m
    Rep Power
    0
    No I'm 24, but I finished Calculus my junior year in high school. So yeh. I'm a math nerd. But I've done a lot of drugs so it's all kind of fuzzy. xD I just remember this one because my friend and I argued about the method in physics class.

    ---------- Post added at 11:44 AM ---------- Previous post was at 11:41 AM ----------

    I hate those online shits. My girlfriend did a math class online a year or so ago and I hate it. Because it has no common sense filter. You know, if I'm telling you the answer is 6 and 1/2 but the program is all like O NU WE MUST HAVE 6.5 OR WE COUNT IT WRONG LULRULZURLULZRZ......

    Yeah. I hate that shit. Anyways. Good luck of course.

  7. The Following User Says Thank You to wrath For This Useful Post:

    paris hilton (02-13-2013)

  8. #7
    paris hilton's Avatar
    Join Date
    Aug 2012
    Gender
    Posts
    182
    Thanks
    181
    Thanked 14 Times in 13 Posts


    Downloads
    14
    Uploads
    0
    Mentioned
    15 Post(s)
    Time Online
    8 d 12 h 43 m
    Avg. Time Online
    6 m
    Rep Power
    6
    ill try the answer out later thanks so much

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •