State which of the modelling assumptions you have used in order to answer part(a).Show that the acceleration of A before B hits the floor is 0.7ms–2(2).
A particle A of mass 4kg is held at rest on a rough horizontal table. Particle A is attached to one end of a string that passes over a pulley P. The pulley is fixed at the edge of the table. The other end of the string is attached to a particle B, of mass […]