I think it might be a sign error related to g but I'm not sure. When you have g in an equation is it supposed to just be the magnitude? I viewed g as -9.8, which is why I subtracted the second term from (h-d) iirc (it's 5:30 AM right now and I haven't had the chance to really look it over in...
Here's the situation:
A small block of wood of inertia mb is released from rest a distance h above the ground, directly above your head. You decide to shoot it with your pellet gun, which fires a pellet of inertia mp. After the block has fallen a distance d, the pellet hits it and becomes...
This is with regard to 2 boxes of different masses that are stacked on top of each other and pushed at a constant velocity across a table that has friction. One of the sentences is right:
"When the boxes move at a constant speed, there is no change in momentum. This means that the boxes are an...