Let x be the height of the water level and l be the width of the water level.
Therefore, V = (1/2)LX*6 = 3LX.
According to the similarity, L/x = 100/50 = 2, L = 2x.
Therefore, V = 6x^2, dV/dt = 12xdx/dt.
When x = 0.2 cm.
dV/dt = 2.4dx/dt
dx/dt =(dv/dt)/2.4 = 1.2/2.4 = 0.5 m^3/min
How to write 1
It is pointed out in the Outline that children should have a preliminary knowledge of safety an