Ahockey puck slides across the ice at a constant velocity. is the sliding puck in equilibrium? why or why not?

Since the hockey puck is moving at constant velocity

So here we will have

where we have

a = acceleration of the object

m = mass of object

so here since we know that acceleration is defined as rate of change in velocity

so here we will say that

so we have

so we will say that hockey puck is in equilibrium as there is no net force of it

it about 600 mph from what i calculated

the answer would be   dignified - apex