The meterstick shown is $100$ cm long. It is free to pivot around its center of gravity $($CG$),$ which is at the $50$ cm mark. There is a $25\mathrm{.}0$ N block hanging from the $80$ cm mark. Decide where each of the other blocks should be placed, one at a time, to balance out the $25\mathrm{.}0$ N block.

At what mark on the meter stick would you place a $17\mathrm{.}0$ N block to balance the $25\mathrm{.}0$ N block?

At what mark on the meter stick would you place a $43\mathrm{.}0$ N block to balance the $25\mathrm{.}0$ N block?

mark: