Recent content by Amik

OK. This is only AP level problem. Dioes that mean my explanation is entirely wrong?

For plane I mean the incline. Because in both senarios blocks are only subject component of force of gravity(that force is parallel to the surface) I might be wrong.

So, I know the right solution should be like it has same potential energy initially, in the trial one, since the floor is frictionless, the plane will move too and it shares the potential energy with the block. So in trial 1 the potential energy equals final kinetic energy of the block and...

I want to buy the access code for university physics 14th edition.I know there are 3 volumes for this books.Is there one access code for 3 books or just one for each volume?

I got it now.The equilibiluum position is when x=0.1(not x=0.2!)

1/2k*x*x+mghi=mghf I put x as 0.1 and I got 49?

If it is spring+mass system(Why should we include the gravity, since the Earth exert it)

If it is spring+mass system(Why should we include the gravity, since the Earth exert it)

I think we have elastic potential, gravitational potential and the kinetic energy(although it is 0 when we are using it)

The thing I am confusing about is is the system spring and the mass or spring mass and the earth?

The reason why it has extra is because it is released instead of slowly lowering it?

Fnet=0 kx-mg=0 k=mg/x=0,25*9.8/0.2=12.25 But answer is 25(And they use 0.1 instead of 0.2 Why?)

I am sorry. The problem should be A 50-cm-long spring is suspended from the ceiling. A 250g mass is connected to the end and held at rest with the spring unstretched. The mass is released and falls, stretching the spring by 20cm before coming to rest at its lowest point. It then continues to...

Fnet=0 kx-mg=0 k=mg/x=0,25*9.8/0.2=12.25 But answer is 25(And they use 0.1 instead of 0.2 Why?)

I believe they are the same?I think i am wrong.