Recent content by tippetmaster

Homework Statement Suppose that an object that would normally float is held submerged How does the buoyant force in this situation compare to its weight? Explain you answer. Homework Equations I know that if a floating object isn't held submergered then its weight and buoyant force are...

so why is this situation impossible?

Because if the colliding objects stick together after the collision then the collision is perfectly inelastic

okay what does it mean if kinetc energy is conserved?

Homework Statement A 2.00 kg mas (A) moving at 2.00 m/s strikes another 2.00 kg mass(B) which is at rest. Both are confined to a a straight line to move along. An impossible outcome for this collision is that A sticks to B and they both move off together at 1.414 m/s. First show that this...

so in my situation, where a 270 g mass is dragged up an incline with angle of .55 degrees by a falling mass of 10 g, which would be bigger?

I see! Thank you so much! I have been trying to wrap my head around this problem for a while. So if friction is not negligible what is bigger, potential energy or kinetic energy? Would my answer have to depend on the situation that would be occurring or is there a general rule?

okay I get it, the loss in potential and kinetic energy is then gained by the new thermal energy, friction. So how do I break down friction to include mass velocity ect? I know that the equation can look like this: .5(m)(vi)^2+mg(yi)=.5(m)(vf)^2 +mg(yf) +friction What is friction...

alright, so I have the conservation of mechanical energy to be KEi+PEi=KEf+PEf. How do I then Incorporate friction into the equation?

Homework Statement Explain what is meant by the conservation of mechanical energy. Write the corresponding equation in detail (in terms of mass speed ect.) a) If friction is not truly negligilble, how would you insert the influence of friction in the equation of the above question? Write...

I did that and I got negative 58. 9 Joules but then how do I figure out b?

A samll mass is hanging from an air track system with a mass of 10 grams. It is connected to a glider with a mass of 120 grams. The air track makes on angle of .35 degrees with the horizontal. Assume that the hanging mass and the glider are initially at rest. a) if the mass drops a distance...