Recent content by hamzaarfeen

so how can i solve it? if i make two equations, then one can be made for the upper box using f=ma, but what about the other equation?

Homework Statement A delivery van has two packages left that are stacked one on top of another. The upper packages has a mass of 4.0 kg and is a poorly packaged glass vase, while the lower package has a mass 6.5 kg. The coefficient of static friction between the two packages is 0.211 and the...

oh you sorry i made a mistake in calculations...but i still don't know if my answer is right. and what is the purpose for giving the length of the cable?

Homework Statement A huge Halloween decoration of mass 100kg is suspended by 3 cables. Each cable is exactly 25m long and is attached to each of the three building equidistant from each other. Each cable makes an angle of 30 degrees with the side of the building to which it is attached. What is...