Two balls with masses 3 kg and 2 kg move toward each other, collide head-on, and stick together after the collision (a perfectly inelastic collision). Before the collision the 3-kg ball moves with a speed of 5 m/s and the 2-kg ball moves with a speed of 10 m/s. Neglect friction. See the figure above. What is the velocity of the balls after the collision? a. -2 m/s b. -1 m/s c. 3 m/s d. 5 m/s

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 24P: What is the average momentum of a 70.0-kg sprinter who runs the 100-m dash in 9.65 s?
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Two balls with masses 3 kg and 2 kg move toward each other, collide head-on, and stick together after the collision (a perfectly inelastic collision). Before the collision the 3-kg ball moves with a speed of 5 m/s and the 2-kg ball moves with a speed of 10 m/s. Neglect friction. See the figure above.  

What is the velocity of the balls after the collision?

 

  a.

-2 m/s

  b.

-1 m/s

  c.

3 m/s

  d.

5 m/s

                                                                                                                    

 

Perfectly inelastic collision
3 kg
2 kg
5 m/s
10 m/s
Transcribed Image Text:Perfectly inelastic collision 3 kg 2 kg 5 m/s 10 m/s
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