The Physics of Dance - University of Illinois High Energy Physics ...

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Gravity... …is the only force acting on a dancer in midair. Recall: net effect of gravity is the same as if it were only acting at the dancer’s center of gravity. ! ! Gravitational force: F = mg ( g ! is constant) v ! Force and momentum: ! ! ! ∆ p= m∆ v = F∆t 30
Gravitational acceleration... …is independent of mass. Anything you drop speeds up at the same rate; anything thrown straight up slows down at the same rate. v ! Vertical speed changes by 32 feet per second (about 22 mph) for each second spent in the air. 31
Page 1 and 2: The Physics of Dance George Gollin,
Page 3 and 4: How’d we get ourselves into this?
Page 5 and 6: Force changes momentum • The hard
Page 7 and 8: More Physics Vocabulary • Angular
Page 9 and 10: Still More Physics Vocabulary • C
Page 11 and 12: About torque... Torque changes angu
Page 13 and 14: Center of gravity Just like you'd t
Page 15 and 16: More complicated example v ! v ! Fo
Page 17 and 18: Staying Balanced Smaller floor cont
Page 19 and 20: Balance While Turning Not all posit
Page 21 and 22: Reminders: The Physics of Turns !
Page 23 and 24: Calculating Rotational Inertia I "
Page 25 and 26: " Increasing I Decreases Spin Rate
Page 27 and 28: The Physics of Jumps Gravitational
Page 29: The Physics of Jumps The equivalenc
Page 33 and 34: Trajectory in a Jump Height vs. tim
Page 35 and 36: Illusions in a Jump By raising his/
Page 37 and 38: Half the duration of the jump is sp
Page 39 and 40: With More Time... Time permitting,

The Physics of Dance - University of Illinois High Energy Physics ...

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