In adjacent figure a boy on a horizontal platform A kept on

Last updated: 6/10/2023

In adjacent figure a boy on a horizontal platform A kept on a smooth horizontal surface holds a rope attached to a box B Boy pulls the rope with a constant force of 50 N The coefficient of friction between boy and platform is 0 5 mass of boy 80 kg mass of platform 120 kg and mass of box 100 kg A B A Velocity of platform relative to box after 4 sec is 2m s B Velocity of boy relative to platform after 4 sec is 2m s C Friction force between boy and platform is 30 N Friction force between boy and platform is 50