move sci hw #2 9.29 - The second measure I would take is on...

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Samantha Levine Movement Science 110 Ms. Aneeka 9/29/2010 1) a- My Height: 63 inches= 1.6002 meters b- My Mass: 110 pounds= 49.9 kg c- My weight: F= ma F= (49.9)(10 m/s 2 ) F=490 N 2) a and b) Length of foot= 22 cm .22 m x .152 m= .03344 m c) Mass of thigh= 0.100 kg (49.9 kg) (.100 kg)=4.99 kg d) Mass of head= .081 m (49.9 kg)(.081 kg)= 4.0419 kg 3) a and b) c)
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d) I could measure my actual angle at my maximum forward lean by using the two parts of a goniometer. One part should be at the base of my foot and one part should be on my leg. In a moment in time, I must be leaning all the way forward right before I would fall. I would then measure the degrees on the dark line of the goniometer. 4) a) I would conduct a kinematic analysis on a spin in ballet dancing. b) One measure I would take is the hip angle of the dancer. I would do this because when spinning the dancer will not remain balanced if they are leaning forward or backward. Leaning affects the hip angle so I would be curious what the correct hip angle is and what the participants hip angle was.
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Unformatted text preview: The second measure I would take is on the dancers spotting. Spotting is a technique that is designed to center spins and to avoid dizziness. When a dancer spots, they pick a spot to stare at and fix their eyes on for the entire spin so that they can snap their head around back to that point. I would want to measure the point at which the dancer is spotting and if the dancer is accurate in her spotting. c) The tools I would use would be multiple video cameras to get different views, a goniometer, and a marker for the dancers head. d) These measurements would help me because I would know if I was leaning the wrong way when spinning and how to fix it. I would also know where the best place to look for spotting is so I would not get dizzy while spinning. These are important techniques for dancers because a spin is so common. If these things were known, the dancer can perfect her moves and be precise....
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move sci hw #2 9.29 - The second measure I would take is on...

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