I think it is number four because he is sitting on the chair and exerting force on the chair because the chair is not pushing him
Answer:
V = 6.36 m³
Explanation:
For this exercise we will use fluid mechanics relations, starting with the continuity equation.
Let's write the flow equation
Q = v₁ A₁
The area of a circle is
A = π r²
Radius is half the diameter
A = π/4 d²
Q = v₁ π/4 d₁²
Q = π/ 4 15 0.03 2
Q = 0.0106 m3 / s
The volume of water in t = 10 min = 10 60 = 600 s
Q = V / t
V = Q t
V = 0.0106 600
V = 6.36 m³
So here, you're looking for distance. The formula is D=vt+1/2at^2.
Lets plug in the informations.
10 m/s is our v (initial velocity)
5 second is out t(time)
3.2 m/s is our a(acceleration)
10m/s(5)+1/2(3.2m/s+5^2)
50m/s+1/2(28.2)
50m/s+14.1
Answer =64.1 m
Glad to help you out buddy. Let me know if you need help.
The total distance is 4 + 7 = 11 Km
I would help them out and try to comfort and protect them from what was making them feel like that
