Q about Rigidbody.velocity automatically stop understanding

Questions & Answers
1

Update()
if(Input…)
{rb.velocity = Vector3 …}
I found that if you get the input then the gameObject move, if you let the input go, then the gameObject almost stop moving immediately.
I set the friction to zero and it still stop on its own.
I only set the velocity to a Vector not equal to zero, I never code it to stop.
WHY???
THXX a lot!

2

it’s because when you let the input go, it actually input the value 0 there, resulting in the gameObject stopping.
Unless if you’re using AddForce to move your gameObject.