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# Circular Motion

The wheels on the bus go round and round, but can you name all the forces in a rotating reference frame? Learn to derive these and more through sheer force of reason in Circular Motion.

# Circular Motion - Level 2 Challenges

A double-decker bus wants to take a turn safely, without tipping over. Which of the following will decrease the chance of the bus toppling?

This bus toppled when it took a sharp turn very quickly. Which way was the bus turning (from the point of view of the bus driver) before it toppled?

During their physics field trip to an amusement park, Tyler and Maria took a ride on the Whirligig, which has long swings spinning in circles at relatively high speeds. As part of their lab assignment, they estimated that the riders were making a full circle of radius $$6.5 \text{ m}$$ every $$5.8$$ seconds. Determine the approximate speed of the riders on the Whirligig.

The tallest Ferris wheel in the world is located in Singapore. Standing 42 stories high and holding as many as 780 passengers, the Ferris wheel has a diameter of 150 meters and takes approximately 30 minutes to make a full circle. Determine the speed of riders (in m/s and mi/hr) on the Singapore Flyer. (GIVEN: 1.00 m/s= 2.24 mi/hr)

Two clocks $$A$$ and $$B$$ of radii $$r$$ and $$R$$ respectively, with $$r<R$$, show the same time.

The tip of the minute hand of which clock will move with greater speed?

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