2023 HSC Q13.a) (1 Viewer)

[ISAM77]

I can find the solution if I use the method in the marking guidelines. However, why doesn't my method give the correct answer?

i. is good.
ii. is good.
iii. is wrong.

 

[kendricklamarlover101]

I can find the solution if I use the method in the marking guidelines. However, why doesn't my method give the correct answer?

i. is good.
ii. is good.
iii. is wrong.

h is only equal to if dh/dt = k/hpi. since the rate of change to empty the container is not equal the rate to fill the container then you cannot substitute h as . also in ur final line u cube rooted both sides of the equation but the 2 is only square rooted

 

[ISAM77]

h is only equal to if dh/dt = k/hpi. since the rate of change to empty the container is not equal the rate to fill the container then you cannot substitute h as . also in ur final line u cube rooted both sides of the equation but the 2 is only square rooted

thkyou!