# What torque would have to be applied to a rod with a length of #6 m# and a mass of #3 kg# to change its horizontal spin by a frequency #5 Hz# over #4 s#?

##### 1 Answer

Sep 3, 2016

#### Answer:

#### Explanation:

The torque is given by:

where

and

So, from the given data

Thus we can now evaluate the torque