Simple calculus question that i just cannot get my brain around currently.
A lamp is 6m directly above a straight path. A man 2m tall walks along the path away from the light at a constant speed of 1 m/s. At what speed is the end of his shadow moving along the path? At what speed is the length of his shadow increasing.
A full working would be appreciated. But even if just show me the set up that would still be good.