bag of sand with original weight 144 lb..
lifted in cnst rate & leaks in cnst rate ..
it was 1/2 weight (72 lb) when lifted up to 18ft ....
how to find work done this far ....
i did set the integral from 0-18
but cant find f(x)
any help pls.
bag of sand with original weight 144 lb..
lifted in cnst rate & leaks in cnst rate ..
it was 1/2 weight (72 lb) when lifted up to 18ft ....
how to find work done this far ....
i did set the integral from 0-18
but cant find f(x)
any help pls.
ill try and help lol.
f(o)=144 lbs, f(18)=72, therefore f(x)=144-(72/18)x. Next u take the integral of that and taking the integral from 0-18 u get 144x-2x^2 |0-18
giving u an answer of 1944 ftlbs.
im assuming u can take the intrgral by urself so i didnt explain that to much. does that answer ur question?
lol what book are u using, i had the same problem?