is the system balanced? explain and justify you response.?

Question

two masses are hanging on a meter stick suspended from its center. on the right side, an object with as mass of 155 square nuts is 11cm from the fulcrum, and on the left side, and object that balances 142 square nuts is 12 cm from the fulcrum.

Answer 1

This question is about summing the moments (or torque, the magnitude of a force multiplied by its distance from the point of rotation) about the pivot point.

All you need to do is multiply the mass and distance from the fulcrum of each object and see which is greater.

155sn * 11cm = 1,705 sn-cm
142sn * 12cm = 1,704 sn-cm

The system is out of balance (though by a very small amount) to the right.