A plank inclined at an angle of a to the horizontal lies on

Last updated: 6/11/2023

A plank inclined at an angle of a to the horizontal lies on two supports A and B see figure over which it can slip without friction under the action of its own weight Mg With what acceleration and in what direction should a man of mass m move along the plank so that it should not slip I A a B A the man should move down the plank B the acceleration of the man should be gsin a 1 M C the acceleration of the man should be g sin a 1 D the man should move up the plank sina 1 M m