It is either a person who studies Linguistics or
a person skilled in foreign languages
The law of motion that is being described in this scenario is Friction. Friction between the skate and the ice is what's moving the skater forward.
Answer:
P_2 = 1.62 atm
Explanation:
We know the formula for the rms speed of the ideal gas is given by

P= pressure of the surrounding
V= volume of the vessel
m= mass of the gas
Now, From this formula rms speed (v_rms) is directly proportional to square root is pressure.
Then

given that v_rsm,1= v0
and v_rsm,2=0.9v0
putting these values we get

P_2 = 1.62 atm
I don't know I'm just a troll.