Question

A balance and torque experiment is conducted with an UN-balanced ruler.

Length of the ruler: 1 m

Mass of the ruler: 91 g

The pivot is at the 34-cm mark.

A 93-g mass is located at the 79-cm mark of the ruler.

We want to balance the ruler by placing another mass at the 17-cm mark.

What should be magnitude of this additional mass?

Answer 1