Determine the reactions at locations A and B (as scalar components with a unit of N for a force and N-m for a moment). Location A is the bracket resting against the wall that resists horizontal movement (neglect friction) and location B is a screw that resists both vertical and horizontal movement. The shelf and bracket have a combined mass of 5 kg with a mass center at Gp and the motor has a mass of 18 kg with the center at Gm. Draw an appropriate free body diagram of the shelf system.