Maths

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A swing 5 metres long swings through a vertical angle of 50 degrees. Through what vertical distance does the seat rise in going from its lowest position to its highest?

  • Maths -

    At the lowest point, the swing is 5m below the support.
    At the half-vertical angle of 50, the swing is 5m*cos(25°) below the support.
    So the vertical distance
    = 5m*(1-cos(25°)
    Your calculator will give you the approximation to the exact answer.

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