Answer:
Explanation:
Given
Initial velocity of first billiard ball 
Initial velocity of second billiard ball 
After collision first ball comes to rest
suppose m is the mass of both the balls
Conserving momentum to get the speed of second ball after collision
Initial momentum 
Final momentum 
where
and
are the speed of first and second ball respectively



thus speed of second ball after collision is equal to speed of first ball before collision
<span>An automobile with a mass of 1450 kg is parked on a moving flatbed railcar; the flatbed is 1.5 m above the ground. The railcar has a mass of 38,500 kg and is moving to the right at a constant speed of 8.7 m/s on a frictionless rail...
</span>
Plate tectonics
and the ocean floor
Bathymetry, the shape of the ocean floor, is largely a result of a process called plate tectonics.
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The principle of the Conservation of mass is so important, as it defines that in physics, nothing can be created or destroyed in an isolated system. It explains <span>that the number of molecules (parts) must be equal on both sides of the equation - BALANCED EQUATION</span>