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Cheerleading Laws of Motion
Transcript of Cheerleading Laws of Motion
appear constantly in our everyday lives.
These are just a few of many.
Thank you for watching.
And this concludes our
presentation! Laws of Motion in Cheerleading Newton's First Law of Motion First Law: If an object experiences
no net force, then its velocity
is constant: the object is either
at rest (if its velocity is zero), or it
moves in a straight line with constant
speed (if its velocity is nonzero). Newton's Second Law of Motion Second Law: The rate of change of
momentum is proportional to the
imposed force and goes in the
direction of the force. Newton's Third Law of Motion Third law: When a first
body exerts a force on a
second body, the second
exerts a force on the
first body. This means
that both are equal
in magnitude and
opposite in direction. Analyze how Force affects Motion When your hands apply force against
the floor, the floor has force in the
opposite direction. When your legs
build momentum from your arms
swinging and you jumping it causes
your body to force itself over.
So it includes both one and
two dimensional forces. Speed, Velocity, and Acceleration. Formulas for Speed and Acceleration Speed = Distance/Time
Example: 420 mi./6hr. = 70 mi/hr *Speed-a scalar quantity that refers to "how fast an object is moving."
*Velocity-a vector quantity that refers to "the rate at which an object changes its position."
*Acceleration- The rate of change of velocity per unit of time. Acceleration- This is the rate of change of velocity.
Acceleration = change of velocity ÷ time
All unit must be in SI units
40 km/hr = 11.11 m/s
80km/hr = 22.22 m/s
Acceleration = 11.11÷ 2
Acceleration = 5.556 m/s² in the original direction. Explain how Motion is relative to a Reference Point A reference point shows the relation of an object and a moving/non-moving object.
Example: If you were in a plane flying around a building, it would appear that the building is moving instead of you inside the plane.