Question

find pressure on a swimmer 50 m below the surface of a lake​

Answer 1

Yo

pressure at a depth x can be given by

P=Po+dgx

where d is density of liquid

Po is atmospheric pressure

so in the question given above

x=50m

d=1000kg/m³

g=10m/s²

Po=1atm

Usually we don't assume Po so you can also ignore it

hence

P=50*10*1000

=500000N/m²

Hope this helps