21 A block of mass m is kept on a horizontal ruler The

Last updated: 6/7/2023

21 A block of mass m is kept on a horizontal ruler The friction coefficient between the ruler and the block is u The ruler is fixed at one end and the block is at a distance L from the fixed end The ruler is rotated about the fixed end in the horizontal plane through the fixed end a What can the maximum angular speed be for which the block does not slip b If the angular speed of the ruler is uniformly increased from zero at an angular acceleration a at what angular speed will the block slip