Thanks Dick I just tried it with two coins..and you that's the case,but it is still a bit counterintuitive..haha.i think i need some more time to totally get it but you thank you!
um..thanks Dick..but i do not quite get the significance of its center rotateting once clockwise around the center of A. Wont B still rotate 3 times if A is not moving at all?..Why will be B rotating twice? Thank you so much
For number 1, I was thinking that when B revolves clockwise,A will also rotate by the same distance,so i was thinking that the answer will be 1.5 times and counterclockwise because then B will have traveled 3pi and A will also have traveled 3pi which adds up to the circumfrence of A..but the...
1.Consider a circle A of radius 3 and a circle B of radius 1.The circle B is inside A and tangent to A. The circle B rotates so that,without slipping, it revolves once about A in the clockwise sense. Find the number and sense of rotations of B.