Question

A hockey puck slides across the ice at a constant velocity. Is the sliding puck in equilibrium? Why or why not?

Answer 1

Since the hockey puck is moving at constant velocity

So here we will have

`F_(net) = ma`

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

`a = (dv)/(dt)`

`a = 0`

so we have

`F_(net) = 0`

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