There are two balls touching each other circumferencically. The radius of the big ball is
4 times the diameter of the small all. The outer small ball rotates in anticlockwise direction
circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates
anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel
always is horizontal.

• two balls touching circumferencially.
  and radius of big ball=4(diameter of small ball)
  =4(2r)=8r
  so N*2*3.14*r=16*2*3.14*8*r
  by solving we get N=128rev/sec
• 13 years agoHelpfull: Yes(9) No(8)
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