A ball climb up another object on a frictionless surface

[Fu-Kwun Hwang]

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Because there is no friction between objects and between object and the ground.
The total momentum in the horizontal direction must be conserved.
Try with different initial velocity and water how the motion changed!
The total energy of the system is always conserved,too!

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[lookang]

download button error: file does not exists!

[Fu-Kwun Hwang]

Thank you! It is fixed now!