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calculusxy

  • one year ago

MEDAL!!! It takes me about an hour to get from my home to the supermarket. If my home is x km away, what is my average speed in meters per second? A. 1000x B. x/1000 C. x/1000 X 60 D. 1000x/60 E. x/1000 X 60 X 60 F. 1000x/60 X 60

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  1. calculusxy
    • one year ago
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    @Nnesha

  2. Astrophysics
    • one year ago
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    \[s = \frac{ d }{ t }\] s is your speed, d is your distance (x in this case) and t is your time.

  3. calculusxy
    • one year ago
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    I chose D, but I know I am wrong. Can you explain to me why?

  4. Astrophysics
    • one year ago
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    Well your answer wants it in meters/ second so notice we are given 1 hour, and x km, so first thing we want to do is convert it to seconds and meters respectively. To convert an hour to seconds we do 60*60 which will give us our time in seconds. For meters, know that 1km = 1000m, so we have 1000x using our formula above, for speed we have \[s = \frac{ d }{ t } = \frac{ 1000x }{ 60 \times 60 }\]

  5. calculusxy
    • one year ago
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    My answer is correct? Are you sure because my teacher marked that wrong?

  6. Astrophysics
    • one year ago
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    Sorry I thought you picked F

  7. Astrophysics
    • one year ago
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    the last option

  8. Astrophysics
    • one year ago
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    D would be wrong because, you have it in minutes not seconds

  9. calculusxy
    • one year ago
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    Oh yes, I didn't look for that. Thank you!

  10. Astrophysics
    • one year ago
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    Np :)

  11. calculusxy
    • one year ago
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    I have another question.

  12. calculusxy
    • one year ago
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    I did an experiment today relating to torques. The materials that I had were a meter stick, masking tape, and weights. We had to use the ruler and place the two weights on each side, to try to make it balance to each other. Also, we had to note how far the tape (holding the weight) was from the center (or 50cm). Here is my first data: Mass 1: 200g Distance from 50cm: 19cm Mass 2: 100g Distance from 50cm: 36 cm Then we had to multiply the mass times the distance for each and were asked to look for a pattern. Here are my products: Mass 1: 200g x 19 cm = 3800 Mass 2: 100g x 36 cm = 3600 I don't notice a pattern and need help in finding one.

  13. calculusxy
    • one year ago
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    @Astrophysics

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