1. The problem statement, all variables and given/known data You hang a plumb bob inside an empty box. The empty box slides down a friction-less inclined plane. The inclined plane makes an angle of 30 degrees with the horizontal. What is the angle the plumb bob makes with the vertical during the slide? 2. Relevant equations g pulled down on the string at 9.81 m/s^2... and the Tension = should be the same in the opposite direction 3. The attempt at a solution I know that the box is accelerating down the slide and the string continues to exert an upward force on the plumb bob to balance the gravity acting on it. The plumb bob should hang an angle towards the back of the box. I tried to draw it out but Im not even sure if I have it right so far.