Answer:
Zero Newtons
Explanation:
Newton's second law of motion states that the net force applied to an object is equal to the product between the object's mass and its acceleration:
[tex]F=ma[/tex]
In this case, we want the hockey puck to slide at constant velocity - constant velocity means zero acceleration:
a = 0
And so this means also that the net force is zero:
F = 0
However, the problem says that ice friction and air resistance are negligible - so there are no forces acting on the hockey puck. This means that the puck will continue its motion at constant velocity if we don't apply any other force on it.
