Hi Guys, How can I make a seesaw that interact with a platformer object?

I tried to create a platform with physics and a rounded support below, but it didn’t work. Can someone give me a solution?
images
Like this.

Ah… If I am right, the physics behaviour does not interract with the platformer one. For exemple they have 2 different collision system.
What kind of effect would you like to achieve ?

Kind when an object platformer is positioned to the left side of the seesaw, it tilts down
https://www.google.com/search?q=seesaw+gif&sca_esv=576600514&rlz=1C1YTUH_esPE1015PE1015&tbm=isch&sxsrf=AM9HkKlsEg7mnaLcAmBi-n7Z4O960lQ2HA:1698264099650&source=lnms&sa=X&sqi=2&ved=2ahUKEwi_tJPj_pGCAxXbppUCHQNwBRwQ_AUoAXoECAIQAw&biw=1920&bih=931&dpr=1#imgrc=gMuVc_XW-f4YkM
Like this gif

As @vfabien21 wrote, platform and physics behaviours don’t mix.

Make the plank a dynamic physics object. Then add a pivot joint at the centre of the plank. You’ll also need a static physics object as the floor, to prevent the see-saw from spinning like mad. The support in the middle is just for show in this case - it plays no part in the see-sawing affect.

Each object that sits at the ends of the see-saw will need physics behaviour too.