This is the case:
We going to decide the centre of gravity to a flagstaff with length 10 m
We saved up the flagg staff in the thick end. We then need to use a vertical force F in the thin end to keep the flagstaff in horizontal balance. We then saves up the flagstaff in the thick end. Then we need to use a horizontal force on 4F in the thick end too keep the flagstaff in horizontal balance.
i) Count out where the centre of gravity to the flagstaff is.
ii) Count out the force F when the mass of the flagstaff is 250 kg.
Can anyone get me started ?