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3.3 Carousels &amp; Roller Coasters

# 3.3 Carousels &amp; Roller Coasters - Carousels and...

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2 Acceleration and Weight This feeling of acceleration is not a real force just a feeling caused by your body s inertia directed opposite your acceleration proportional to that acceleration You feel an overall apparent weight feeling of real weight plus feeling of acceleration Force from accelerating elevator Your body senses changes in these support forces as a change in weight! Weight in an Elevator Clicker Question 2 When the bucket was directly above my head, was there a force pushing up on the paper that kept the bits of paper in the bucket? a) yes b) no Question 2 Why do you feel flung outward on a carousel? How are you accelerating on a carousel? Carousels Riders undergo uniform circular motion (UMC) Riders follow a circular path Riders move at constant speed UCM involves centripetal acceleration Acceleration is directed toward the circle s center Acceleration depends on speed and size of circle v a Acceleration & Circular Motion Acceleration: change in velocity per unit time In uniform circular motion: Acceleration Ⱥ Constant Ⱥ Directed towards the center Velocity Ⱥ Constant magnitude Ⱥ Tangent to the path Top view:
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3.3 Carousels &amp; Roller Coasters - Carousels and...

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