p=mv 1) Ball 1 has a mass of 1 kg and is moving 4 m/s at an angle of0°. Ball 2 h
ID: 1585327 • Letter: P
Question
p=mv 1) Ball 1 has a mass of 1 kg and is moving 4 m/s at an angle of0°. Ball 2 has a mass of 3 kg and is moving 2 m/s at an angle of 180. a) After they collide, ball 1 is moving at 5 m/s at 180°. Ball 2 is moving at 1 m/s at 0. Is the collision elastic, inelastic, or impossible? Explain. comm+m2+.. b) After they collide, ball 1 and ball 2 are both moving 1/2 m/s at 180°. Is the collision elastic, inelastic, or impossible? Explain. e) After they collide, ball 1 is moving v2 m/s at an angle of +45°. Ball 2 is moving V2 m/s at an angle of -135o. Is the collision elastic, inelastic, or impossible? Explain. 2) A 3 g bullet is fired horizontally into a 10 kg block hanging from the ceiling. The block swings in an arc, rising 3 mm above its lowest position. The velocity of the bullet was: (I pt)Explanation / Answer
1) As the total energy before and after the collision is same (14 joules), the collision is elastic.
2) as speed and direction is same for both the balls, it means they have sticked together after the collision. It means the collision is inelastic.
3) Not sure about this one...but this collision seems impossible as ball 2 was initially moving at 180 degree so its impossible to go to - 135 degree after collision.
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