What will be the terminal velocity of a steel ball of radius?
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The terminal velocity is the speed a free falling body reaches in a fluid. ... The terminal velocity will be the velocity at which the drag force equals the vertical force, normally much much lower than in air.
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Where η is viscosity, σ is fluid density, ρ is sphere density, r is radius of the sphere and vt is the terminal velocity. From this we can conclude that terminal velocity is proportional to radius².
Size (mm dia): 9.4
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