Analytical question: circular rotation

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A point P on a smaller wheel cannot trace a straight line path inside a circular road due to the nature of circular motion. The discussion references an illustration from a physics resource to clarify the concept. Participants express confusion about the mechanics of circular rotation and how it relates to linear paths. The geometry involved complicates the idea of a straight line being traced. Understanding these principles is essential for grasping the relationship between circular motion and linear trajectories.
SAMAHIR
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Homework Statement
Circular Rotation
Relevant Equations
NO
Can a point P on the smaller wheel trace a straight line
path inside the circular road (like the walls of a well)
 
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If have close pipe system with water inside pressurized at P1= 200 000Pa absolute, density 1000kg/m3, wider pipe diameter=2cm, contraction pipe diameter=1.49cm, that is contraction area ratio A1/A2=1.8 a) If water is stationary(pump OFF) and if I drill a hole anywhere at pipe, water will leak out, because pressure(200kPa) inside is higher than atmospheric pressure (101 325Pa). b)If I turn on pump and water start flowing with with v1=10m/s in A1 wider section, from Bernoulli equation I...

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