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rammstein rammstein is offline
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Join Date: Oct 2002
Location: Miami
Posts: 4,294
Physics Question

I have recently become fascinated with physics. As in the last hour.

Here is the question:

10lb object in space moving at 10mph hits 5lb object moving Zerio Mph. The collision is dead on. What is the resulting speed of each object?

I know that the kinetic energy of the original object was 500 initially. But I don't know how much transfers to the stationary object.

Whats weird is that I have a known fact- if the object was to hit another object of equal weight, the original object would stop completely and the 2nd object would take on all of the original speed. Like in curling if you were to hit the other rock dead on, or those desktop thingies where you have 5 balls, drop one and the one on the other side goes up equally, then back and forth indefinitely (until friction with the air and the collision heat and sound eventually stops it)

Assume zero friction, meaning no loss of kinetic energy due to heat loss or sound waves.
Old 11-29-2007, 01:36 PM
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