How can I go about finding the angle, theta, in this Physics problem?
As you can tell, the right-most triangle is a simple 30-60-90 triangle, so above the right angle is a 60deg angle. Then the vertical angle theorem proves the vertical angle to be 60deg as well. I am stuck at this point. How can I find theta?
Thanks
If you assume that the line that goes through the center of the box on the ramp is perpendicular to the surface of the ramp (which is often the case when you consider normal force and want to resolve the weight force vector into two components), then we get that $\theta = 30^\circ$.