Answer:
Yes answer is c) 4
In 1st cube 6-4=2
In 2nd cube 9-8=1
In 3rd cube 4-1=3
31/2
Step-by-step explanation:
center of mass
X =
Y =
y = x and x = 0
parabola ; y = 20 - x^2
attached below is the detailed solution
M = б
Mx = б
My = б