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    saintsophia124
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    Report Thread starter 11 months ago
    #1
    Name:  php5UNUUp.png
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Size:  51.3 KBThe Motion Of A Point On A Bicycle Wheel Is Described By the parametric equations below. A and B are positive constants. Time is measured in seconds and distance in meters (its a big wheel). x(t) = At + cos(2t) y(t) = B−sin(2t)

    a. How long does it take for the wheel to make one revolution?

    B. Use the fact that the y coordinate is zero when it is at the bottom of the wheel to find the constant B.

    In a, I guessed some number, it ended up being wrong answer.

    In b, i plugged in 0 = b - sin2t
    But idk how you get t, if I got a) wrong.
    Last edited by saintsophia124; 11 months ago
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    mqb2766
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    Report 11 months ago
    #2
    (Original post by saintsophia124)
    Name:  php5UNUUp.png
Views: 24
Size:  51.3 KBThe Motion Of A Point On A Bicycle Wheel Is Described By the parametric equations below. A and B are positive constants. Time is measured in seconds and distance in meters (its a big wheel). x(t) = At + cos(2t) y(t) = B−sin(2t)

    a. How long does it take for the wheel to make one revolution?

    B. Use the fact that the y coordinate is zero when it is at the bottom of the wheel to find the constant B.

    In a, I guessed some number, it ended up being wrong answer.

    In b, i plugged in 0 = b - sin2t
    But idk how you get t, if I got a) wrong.
    For A), think about when the height returns to the top or bottom. What is the time period for the trig function to repeat?
    B) does not depend on t. Use the fact that y(t) >= 0. So y=0 at the bottom so what must B be?
    Last edited by mqb2766; 11 months ago
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