There was an Assertion/Reason in our last test at coaching. I am still confused on it!
Statement 1: If a disc of radius rolls in a circular ring of radius R without slipping then all particles on circumference of disc moves on straight lines. (Ring is fixed)
Statement 2:Angular velocity of disc and the angular velocity of centre of the disc wrt centre of ring are equal.
A) Statement 1 is false and Statement 2 is true.
B) Satement 1 is true and Statement 2 is false.
C) Both are true, and Statement 2 explains Statement 1.
D) Both are true, but Statement 2 does not explains Statement 1.
Thats quite obvious that statement two is wrong as angular velocities being vectors in opposite direction cannot be equal. Can someone explain how statement 1 is correct?