Respuesta :
Answer:
-15 cm
Step-by-step explanation:or if you are sying AfTER it lets go, then it is 0.
Answer: He is 0 cm with respect to the surface of the water.
Step-by-step explanation:
Since we have given that
Length of plastic toy submarine below the water surface = 15 cm
Length of plastic toy submarine above the water surface = 15 cm
For below the surface, we would use negative sign i.e. (-) 15 cm
for above the surface, we would use positive sign i.e. (+) 15 cm
So, now he is
[tex]-15+15=0\ cm[/tex]
Hence, he is 0 cm with respect to the surface of the water.