Wednesday, February 8, 2017

Estimation

APPROXIMATION (SETTING THE CONTEXT)

Group Work
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Read the above article (click HERE) and answer the following question. Collaborate with your group members and appoint someone to be the scribe. Post as comment. 
Include your group's team members name.

Question 1:  All Groups
Identify the top 5 100 sprinters in world ?
1. Name    2. Year achieved    3. Time


Question 2: Group A1-3
If the time is estimated to 1 significant figures, how will this affect the ranking of the sprinters? Why? Is this justifiable? Suggest a suitable system of estimation to support your answer.


Question 3: Group B4-6
Identify 2 key points mentioned in the above article. Do you agree?


Question 4: Group C7-9
Now back to the header of the above article. Is Usain Bolt really not the fastest person on Earth? Why?


16 comments:

  1. Fastest sprinters
    1.Usain Bolt 2008 9:58
    2.Tyson Gay 2008 9:69
    3.Asafe Powell 2007 9.72
    4. Maurice Greene 1999 9.79
    5.Donovan Bailey 1996 9.84

    Qns 4. Usain Bolt is not the fastest person on Earth. It is because of the wind and we cannot just based on the 100m sprint to determine.

    ReplyDelete
    Replies
    1. interesting comment but what is meant by the wind or just 100m?

      Delete
  2. Gan Lek Heng, Bryan Tan, Wei Ning
    Usian Bolt is the fastest person on earth as Justin Gatlin only beat Usian Bolt's record for the 100m sprint when he has the wind to help him propel him forward.

    ReplyDelete
    Replies
    1. interesting observation about the wind effect on runners.

      Delete
  3. Sprinters – Men's 100 Metres (World Record: 9.58) by Usain Bolt at the '09 World Championships)
    Usain Bolt (Jamaica) – Fastest Time: 9.58 seconds. ...
    Tyson Gay (United States) – Fastest Time: 9.69 seconds. ...
    Asafa Powell (Jamaica) – Fastest Time: 9.72 seconds. ...
    Maurice Greene (United States) – Fastest Time: 9.79 seconds

    qns 4
    usain bolt is not the fastest person on earth
    it is because of the wind machine then he is able to propel forward

    ReplyDelete
  4. no, Usain bolt is still hold the fastest record on earth because Justin gatlin beat usain bolt in 100m because he has the help in the pressence of wind hence having wind assistance

    ReplyDelete
  5. 1. Usain Bolt (Jamaica) – Fastest Time: 9.58 seconds
    2008
    2. Tyson Gay (United States) – Fastest Time: 9.69 seconds
    2008
    3. Asafa Powell (Jamaica) – Fastest Time: 9.72 seconds
    2007
    4. Maurice Greene (United States) – Fastest Time: 9.79 seconds
    1999.

    5. Donovan Bailey (Canada) – Fastest Time: 9.84 seconds
    1996

    ReplyDelete
  6. Usain Bolt might not be the fastest person in the world as based on his size and physical shape, he might have an advantage in running faster than others

    ReplyDelete
    Replies
    1. so you are referring to the concept of equality. h won because of his size and physique

      Delete
  7. The world's fastest sprinters are:
    1. Usian Bolt 2008 9.58
    2. Tyson Gay 2008 9.69
    3. Asafe Powell 2007 9.72
    4. Maurice Greene 1999 9.79
    5. Donovan Bailey 1996 9.84

    Qns 4. Usain Bolt is not the fastest person on Earth. When he was running there was wind and it helped him to run faster. Also we can't just base it on the 100m sprint.

    ReplyDelete
  8. hsu hwee, audrey peh, rayna

    The two main points are:
    1. Usain Bolt isn't the fastest runner but it is Justin Gatlin. We agree because Justin Gatlin was the one who beat Usain Bolt's best time anyway
    2.women's time was decreasing at a much faster rate than than the men's.

    ReplyDelete
  9. Top 5 Fastest sprinters for 100m
    1.Usain Bolt 9:58 2008
    2.Tyson Gay 9:69 2008
    3.Asafe Powell 9.72 2007
    4. Maurice Greene 9.79 1999
    5.Donovan Bailey 9.84 1996
    Question 2
    All the sprinters would be record holders if that happens.All the time recorded would be the same.Yes.Round it off to one decimal.

    ReplyDelete
    Replies
    1. good observation - so greater accuracy required to identify the best.

      Delete
  10. 1. Usain Bolt (Jamaica) – Fastest Time: 9.58 seconds
    The 100m Olympic record (9.69) was set by Bolt at the 2008 Summer Games in Beijing.

    2. Tyson Gay (United States) – Fastest Time: 9.69 seconds
    During the 2008 U.S. Olympic Trials, Gay also ran a wind-aided 9.68 (once the fastest 100 m under any condition).

    3. Asafa Powell (Jamaica) – Fastest Time: 9.72 seconds
    Asafa Powell ran his fastest time, once the world record, during heats at the 2007 IAAF Rieti Grand Prix.

    4. Maurice Greene (United States) – Fastest Time: 9.79 seconds
    By the widest margin since electronic timing, Greene ran this since passed world record time in 1999.

    5. Donovan Bailey (Canada) – Fastest Time: 9.84 seconds
    Bailey returned Canada to glory with his 9.84 record-breaking run at the 1996 Atlanta Olympic Games.
    Source:http://www.rankings.com/sports-track-sprinters/

    Question Two:
    The Wind,If consistent,will always slow an athlete down in the eventual answer.
    Athletes run faster in a longer event.
    We agree.
    Group:Ryan,Shawn,Ignatius

    ReplyDelete
  11. Team of Ryan,Ignatius,Shawn
    Qn.1 (1)Usain Bolt Time:9.69 Year 2008
    (2)Tyson Gay Time:9.68 Year;2008
    (3)Asafa Powell Time Time:9.72 Year 2007
    (4)Maurice Greene Time:9.79Year:1999
    (5)Donavan Bailey Time:9.84Year 1996
    Qn 3.(1)For most track athletes, wind is anathema.
    (2)It seems reasonable that these two effects might balance each other out, giving Farah the same lap time as if there were no wind at all.

    ReplyDelete

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