Starting in the spring, fruit begins to grow on the outer end of a branch on a pear tree. Explain how the center of gravity of the pear growing branch shifts during the course of the summer.
Suppose you are standing on a train, both feet together, facing a window. The front of the train is to your left. The train starts moving foward. To keep from falling, you slide your right foot out toward the rear of the train. Explain in terms of torque how this actions keeps you from falling over.