Balancing physics problem?Physics balancing problem?
Physics balancing problem?
It says "A 2kg mass is 5m away from the fulcrum of a see-saw. Where must a 3kg mass be placed to balance the see-saw?
can you guys explain how you did it please?
- Seamus OLv 79 years agoFavorite Answer
Clockwise moment has to be balanced by an anticlockwise moment so:
Let the distance the 3 kg mass has to be from the fulcrum = x
Moment = force x perpendicular distance from fulcrum
2 * 9.8 * 5 = 3 * 9.8 * x
x = 10/3
x = 3 1/3 m from the fulcrum on the opposite side to the 2 kg mass