A hockey puck is set in motion across a frozen pond.if ice friction and air resistance are neglected,what is

a hockey puck is set in motion across a frozen pond.if ice friction and air resistance are neglected,what is the force required to keep the puck sliding at a constant velocity?

Newton's 2nd Law says F = m*a

The puck's velocity is constant therefore there is no acceleration. Since the acceleration is zero, the net force is zero.

Net force in a situation like this would be the vector sum
Fnet = ice friction + air resistance + and Fapplied.
Fnet, ice friction, and air resistance are zero, So what would Fapplied be?

Since there is no friction or air resistance, any force will accelerate the object to a constant velocity.

Force * time = mass * increase of velocity
Increase of velocity = (Force * time) / mass

If initial velocity = 0 m/s

Constant velocity = (Force * time) / mass
Force = constant velocity * mass / time

once the puck is in motion, and if you are neglecting all forms of friction, you require no additional forces to keep it in motion...it will stay in constant motion until some other force changes its motion

Zero. The initial impulse provides the initial change in momentum.