O mass m rests on the plank B of mass 3m which is free a 0 c

Last updated: 6/2/2023

O mass m rests on the plank B of mass 3m which is free a 0 c to slide on a frictionless horizontal surface The coefficient of friction between the block and plank is 0 2 If a horizontal force of magnitude 2mg is applied to the plank B the acceleration of A relative to the plank and relative to the ground respectively are bol c g 2 B 3g g 5 5 b 0 A d 2g 3 00 10 2g g ool 2mg 5 5