Nope......... Constant speed but change in direction can cause acceleration which would give a finite force........
Answer:

Explanation:
Given data

Required
Partial pressure of helium
Solution
First calculate the total volume of gas mixture once the stopcock is opened
So

As temperature remains constant,by Boyle's Law we calculate the partial pressure of the helium gas
So

Answer:
it means an expert verified the answer so its nearly always true
Explanation: