A lump of putty with a mass of 0.240 kg and a speed of
Chapter 29, Problem 69P(choose chapter or problem)
Problem 69P
A lump of putty with a mass of 0.240 kg and a speed of 0.980c collides head-on and sticks to an identical lump of putty moving with the same speed. After the collision the system is at rest. What is the mass of the system after the collision?
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