# An object with a mass of # 2 kg# is traveling in a circular path of a radius of #4 m#. If the object's angular velocity changes from # 2 Hz# to # 12 Hz# in # 2 s#, what torque was applied to the object?

##### 1 Answer

Jul 4, 2018

The torque is

#### Explanation:

The torque is the rate of change of angular momentum

For the object, the moment of inertia is

The mass of the object is

The radius of the circular path is

The moment of inertia is

The angular acceleration is

The torque is