Question

In searching the bottom of a pool at night, a watchman shines a narrow beam of light from his flashlight, 1.3 m above the water level, onto the surface of the water at a point d = 2.6 m from his foot at the edge of the pool (Figure 1). 

Part A 

Where does the spot of light hit the bottom of the h = 2.1-m-deep pool? Measure from the bottom of the wall beneath his foot. Express your answer to two significant figures and include the appropriate units. 

Answer 1