Newton's Law of Motion in Life Angela oxlaj

NEWTON'S LAWS OF MOTION IN DANCE

Newton's first law of Motion- An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. velocity= speed in a giving direction d/ time V=d/t

When a dancers, such as ballerinas, do their turns/spins they are showing Newton's "Law of Inertia". When making turns they can either go left or right, but if going in one direction and suddenly wanting to change the direction while spinning in the other, it can't be done.If wanting to change the direction of the turn while already spinning the body will resist because all the power is going into spinning in that one direction. Friction(the resistance that one surface or object encounters when moving over another) is also used in dancing because when a dancer is spinning the friction is the dancer's foot and the floor. The friction between them is what makes the dancer keep moving and makes the dancer stop.

When the dancer spins the friction of their feet and floor keep them spinning and when the dancer wants to stop they put force on their one leg to a stopping position. friction force=coefficient of friction normal face f=uN

Newton's Second Law of Motion

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. Force= mass x acceleration Acceleration=the rate of change in velocity

Skip to 2:25- The amount of force acting on an object is equal to the product of its acceleration and of its mass. In this the amount of force used depends on how fast she/he is going and what their mass is. When a dancer does multiple turns a lot of power is required to complete the turns, So the force that is used to make the turn is the product of the mass and how fast he turns are. They have to push on the floor to go faster and faster.

Newton's Third Law of Motion

Newton's Third Law- For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.

When a dancer jumps in the air they apply a downward force on the stage and the stage applies and equal force up on the dancer. In the pictures above the people are leaping into the air because they applies a downwards force on the stage ground and the stage applied an upwards allowing them all to leap into the air.

Citations-

Guinness World Records (2009, May 12). Most fouettés performed in 30 seconds Retrieved from https://www.youtube.com/watch?v=O0k1nO8PjSU

ptboy18 (2010, November 10). Most epic pirouettes, turns, spins and unknown ever Retrieved from https://www.youtube.com/watch?v=H-EyiYku70o

trikathez (2015, December 10). Dance leaps and jumps Retrieved from https://www.youtube.com/watch?v=_nuYp1mKmc8

revisionfx (2015, August 22). Twixtor slow motion ballet with Amy Seiwert’s imagery Retrieved from https://www.youtube.com/watch?v=uCVCymSL-rc

Who knew Newton could dance? Retrieved February 20, 2017, from http://lsacarissac.weebly.com/

Terms, P. I. (2017). Newton’s laws of motion: Ballet. Retrieved February 20, 2017, from https://prezi.com/8jyq_x__dtzm/newtons-laws-of-motion-ballet/

Credits:

Created with images by Takmeomeo - "ballet dance dancer" • Cillian Storm - "Yin and Yang" • Dancewear Central - "Black and white dance still" • NFGphoto - "Bella" • English Rose247 - "Elegance" • val_girl - "Dance" • NFGphoto - "Kelly" • ballet dancers - "sarabita"

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