Can I use ∑F=ma to find the acceleration, or is normal force and summation force not the same thing?
(Haha thanks for the arithmetic check. I'm so bad at that)
The formula my teacher gave me for static friction is FsubS=μsubS x FsubN but didn't say anything involving normal force besides that it is opposite weight... this is the first problem he's ever given us of this kind and it's on a take-home quiz which he won't help us on. Anyway... I don't know...
If it's not sliding, that means the vertical acceleration has to be zero, which means the net force is zero? So the horizontal force on the small cube has to be great enough to compensate for the lack of vertical force? Am I going in the right direction?
(I know this type of problem has been discussed on here before, but I still don't understand what to do next)
The attached drawing shows a large cube (mass=55kg) being accelerated across a horizontal frictionless surface by a horizontal force P. A small cube (mass=4.5kg) is in contact with...