• anonymous
Questions on veritical circular motion: (any help with any problem appreciated!) 1. What’s the apparent weight of a 70kg person going 10m/s over a bump with radius of curvature 10m. Use g = 10m/s^2 A) 0N B) 700N C) 350N D) 1050N 2. A motorcycle maintains constant speed as it goes through a loop. Where is the centripetal acceleration of the bike greatest? A) left B) bottom C) top D) centripetal acceleration is constant
  • Stacey Warren - Expert
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  • chestercat
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  • anonymous
3. A ball is tied to the end of a 100cm long string. If it has enough speed at the bottom, it will move in a circular path. What is the minimum speed needed at the bottom for the ball to get to the top of the circle? A) 0.00m/s B) 3.13m/s C) 4.42m/s D) 9.80m/s 4. A toy car travels down a track and through a loop of radius r. From what minimum initial height h does it need to be released so that it stays on the track through the loop? A) h = 3r/2 B) h = 3r C) h = 5r/2 D) h = 2r
  • mos1635
|dw:1333618507484:dw| W=weigth N=force from serface=apparenr weight total force must be what???? (circular motion!!!!)

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