Review. Two speeding lead bullets, one of mass 12.0 gmoving to the right at 300 m/s and
Chapter 20, Problem 62(choose chapter or problem)
Review. Two speeding lead bullets, one of mass 12.0 gmoving to the right at 300 m/s and one of mass 8.00 gmoving to the left at 400 m/s, collide head-on, and allthe material sticks together. Both bullets are originallyat temperature 30.0C. Assume the change in kineticenergy of the system appears entirely as increasedinternal energy. We would like to determine the temperatureand phase of the bullets after the collision.(a) What two analysis models are appropriate for thesystem of two bullets for the time interval from beforeto after the collision? (b) From one of these models,what is the speed of the combined bullets after thecollision? (c) How much of the initial kinetic energyhas transformed to internal energy in the system afterthe collision? (d) Does all the lead melt due to the collision?(e) What is the temperature of the combinedbullets after the collision? (f) What is the phase of thecombined bullets after the collision?
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