Recent content by bongobl

well by law of conservation of momentum, the stick gains as much momentum as the car looses. The reason why the stick does seem to move after the collision is that it is connected to table which is connected to the Earth which has a LARGE mass. When you hit the Earth with something, it moves a...

no prob!

Is the plastic thing free to move like the car is, or is it grounded to the table? Also if you just look at the momentum of just the car alone, then yes it will be different after the collision, i mean it changes direction completely making it go from positive to negative. Momentum is only...

Hey Drizzy, before you begin looking at the conservation of momentum, you need to define a system. Are you looking at the momentum of just the car, or the system containing both the car and the plastic thing? (also please label the diagram) Also what were your results? did the car bounce back...

Hi guys I am trying too find a formula to figure out how I would find the acceleration of a block on an incline plane IF that plane itself were accelerating in the +Y direction. I am not even sure which frame of reference to use since the acceleration is in 2 dimensions. This hinders me from...

Oh I see, since sin(α + β) = sin(α)cos(β) + cos(α)sin(β), and cos(90) = 0, I am left with sin(a)cos(B) in both cases, thanks for the help!

Hi guys, I am stuck with a problem here. First, It is given that for 2-dimensional projectile motion, a trajectory of 45 degrees will yield the greatest range. However, how do I show that angles that differ from 45 degrees by the same amount will yield the same range? For example, the range of...