Find the equation for acceleration and tension in the string when two bodies having different masses m1 and m2 connected by a string passing over a frictionless pulley: a) when two bodies moves vertically b) When one body moves vertically

connect the batteries in series and hope

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.