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"Not everything that counts
can be counted, and not everything
that can be counted, counts."

- Einstein

Circular Motion

"What does this picture tell you about the speed of these motorcyclists?" Nina Prinz and Letizia Marchetti - Ducati Women's Motorcycle Racing Team www.webbikeworld.com             "A large centripetal (center directed) force in needed to turn at high speeds."   The rider needs to lean when they go around a turn at high speeds to counteract the large centripetal force provided by the centripetal force of the tires.

Video Instruction

showmethephysics.com

Fill in the Blank Notes

 I. Uniform Circular Motion

Why can it be said that the earth
has a nearly uniform circular motion
around the sun?

The earth moves in a plane around the sun.
Define the geometric shape called a plane.

The earth and a motorcycle need something
in order to turn. What is that?

The Physics of Countersteering

Force on an Object Moving in a Circle
Show Me The Physics YouTube Channel

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Show Me The Physics

Skater

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Rutgers U.

Show Me The Physics
YouTube Channel

School blocks YouTube? Download file below

ObjectMovingCircle

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Centripetal Velocity

Science Joy Wagon

Circular Motion, Car on a Banked Track

by Dr. Michael R. Gallis mrg3@psu.edu

Penn State Schuylkill

Go Nittany Lions!!

Instructional Video

Draw the centripetal force,
and tangential velocity

Draw the centripetal force,
and tangential velocity

Draw the centripetal force, and tangential velocity

Where should you release the ball to hit the target?

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B

	Circular Motion Equations