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Hockey Disc Block ( 1 ) is 20 % larger than Hockey Disc Block ( 2 ) as shown in Figure 1 . Before the collision and when they are close to the The hockey dise has momentum equal to the other in magnitude and is in opposite direction , and the dist ( 2 ) has an initial velocity of 10 Find the speed of a hockey dise after a collision if half of its kinetic energy turns into internal energy duniati
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