Question

A meter stick is balanced at the 50-cm mark to create a fulcrum. What mass is required to create a torque of 2.1 N/m 30 cm from the fulcrum?

Answer 1

Step-by-step explanation:

Torque is measured in N•m not N/m. N/m is units of a distributed load.

I will ASSUME you mean to say 2.1 N•m

m(9.8)(0.30) = 2.1

m = 0.714285714...

m = 0.71 kg