Conservation
of Momentum in Different Inertial Frames (1D)
It is equally true that if momentum is conserved in one inertial reference
frame,
it is conserved in all inertial frames.
This java applet apply the above concept to one dimensional collision problem.
Two circular objects are confined to move in one diminution (between two gray blocks).
Press start button to run the animation.
- Circular objects will move with some pre-defined velocity (yellow arrow).
While the animation is suspended:
- Click near the arrow of the velocity vector and drag it left/right
to change the initial velocity.
Click at the center of the circle to move it : drag the object left <--> right.
Click within the circle to change the mass of that object.
- Click right mouse button to increase mass by one unit.
Click left mouse button to decrease mass one unit.
- eta is the coefficient of restitution
eta = | relative velocity just after collision / relative velocity just before collision |
for elastic collision eta=1., for perfectly inelastic collision eta=0.
lab is a laboratory inertial frame.
m1, m2 and CM are frame of reference with respect to
left circular object m1, right circular object m2 and center of mass for m1 and m2.
View collision in 2 dimension.
Your suggestions are highly appreciated! Please click hwang@phy03.phy.ntnu.edu.tw
Author¡GFu-Kwun Hwang, Dept. of physics, National Taiwan Normal UniversityLast modified : More physics related java applets
