how to get the force that is being applied to a rigidbody in unity code example

Example 1: unity reset rigidbody velocity

GetComponent<Rigidbody>().velocity = Vector3.zero;
GetComponent<Rigidbody>().angularVelocity = Vector3.zero;

Example 2: unity how to set rigidbody velocity

Vector3 velocity = new Vector3(10f/*x*/, 10f/*y*/, 10f/*z*/);
GetComponent<Rigidbody>().velocity = velocity;