Rosemary Conley

Physics

29 June, 21:42

The number of revolutions of two pulleys is inversely proportional to their diameters. If a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

133 1/3

800

1,200 ... ?

+1

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