y = 0.6x^2

x^2 = y/0.6

x = sqrt[y /0.6]

dA = 2x*dy

dF = (1000*9.8)dA = 9800[2sqrt(y /0.6)]dy

dF = (25,303.5)sqrt(y) dy

F = (25,303.5)INT.(0 to 150)[sqrt(y)]dy

F = (25,303.5)[(2/3)(y^(3/2)]|(0 to 150)

F = (25,303.5)(2/3)[(150)^(3/2) -0]

F = 30,990,331 newtons ------------answer.