It is hard to say accurately - I mean you can do the maths:
F=ma
Print stick weighs what, 200g = 0.2kg
And then the acceleration, is made up of v-u/t. You can assume the pritt sitck is at is terminal velocity, so that will be v;terminal/t
Even now you can see you dont know how long it will take for the pritt stick to stop after hitting someones head.
Then the force you have isnt the end, the pressure will depend on the area of impact. so if it hits square on with a larger area the pressure will be less, than if it hit with an edge.
And still, it depends where on the head you hit I guess (but ask a biologist that)