## Essential University Physics: Volume 1 (3rd Edition)

We found the following two expressions for theta. $\theta=tan^{-1}(1/2)$ $\theta = tan^{-1}(\mu)$ We see that the upper expression reflects when the block will tip, and the lower expression reflects when the block will slide. Thus, we see that the block will slide before it tips if mu is less than 1/2.