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A bright light on the ground illuminates a wall 12 meters away. A man walks from the light straight toward the building at a sp...Asked by Ryan
A bright light on the ground illuminates a wall 12 meters away. A man walks from the light straight toward the building at a speed of 2.3 m/s. The man is 2 meters tall. When the man is 4 meters from the building, how fast is the length of his shadow on the building decreasing?