If a 12 kg mass, moving at 8 m/s to the right, hits and sticks to a 8 kg mass, moving at 11 m/s to the right, and they travel off together at the same speed to the right, find that speed. Hint: both masses are moving to the right, so both velocities are positive. Use the "hit and stick" or inelastic formula

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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If a 12 kg mass, moving at 8 m/s to the right, hits and sticks to a 8 kg mass, moving at 11 m/s to the right, and they travel off together at the same speed to the right, find that speed.

Hint: both masses are moving to the right, so both velocities are positive. Use the "hit and stick" or inelastic formula

 
Expert Solution
Step 1

Given:- 

The mass of an object is m1= 12 kg and m2 = 8 kg. 

The mass m1 moving with the velocity v1 = 8m/s 

The mass m2 moving with the velocity v2 = 11 m/s 

Both the object collides and stick together and move same speed to the right.

Find:- 

What is the speed of the object after collision?

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