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Particle A with mass m 1.0 kg travelling at a speed vo = 10 m/s in the +x direction collides with particle B of mass m= 1.0 kg at rest. After the collision particle A continues on in the same direction (+x) with a speed va and particle B flies off with speed vs also in the +x direction. An amount of heat H=9 J is produced in the collision due to friction. (Note that we made the masses of the two particles equal, so that should help with the algebra!) (A) Is this a perfectly elastic collision, a partially inelastic collision, or a perfectly inelastic collision? Explain your reasoning.

Particle A with mass m 1.0 kg travelling at a speed vo = 10 m/s in the +x direction collides with particle B of mass m= 1.0 kg at rest. After the collision particle A continues on in the same direction (+x) with a speed va and particle B flies off with speed vs also in the +x direction. An amount of heat H=9 J is produced in the collision due to friction. (Note that we made the masses of the two particles equal, so that should help with the algebra!) (A) Is this a perfectly elastic collision, a partially inelastic collision, or a perfectly inelastic collision? Explain your reasoning.

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MOMENTUM: COLLIDING PARTICLES Particle A with mass m= 1.0 kg travelling at a speed vo 10 m/s in the +x direction collides with particle B of mass m= 1.0 kg at rest. After the collision particle A continues on in the same direction (+x) with a speed va and particle B flies off with speed vB also in the +x direction. An amount of heat H=9 J is produced in the collision due to friction. (Note that we made the masses of the two particles equal, so that should help with the algebra!) (A) Is this a perfectly elastic collision, a partially inelastic collision, or a perfectly inelastic collision? Explain your reasoning. (B) How much negative work has gravity done as the train goes up the mountain? (C) What is the net work on the train by all the forces acting on the train? (D) What is the speed of the train after it has travelled the 1,000 m?
Transcribed Image Text:MOMENTUM: COLLIDING PARTICLES Particle A with mass m= 1.0 kg travelling at a speed vo 10 m/s in the +x direction collides with particle B of mass m= 1.0 kg at rest. After the collision particle A continues on in the same direction (+x) with a speed va and particle B flies off with speed vB also in the +x direction. An amount of heat H=9 J is produced in the collision due to friction. (Note that we made the masses of the two particles equal, so that should help with the algebra!) (A) Is this a perfectly elastic collision, a partially inelastic collision, or a perfectly inelastic collision? Explain your reasoning. (B) How much negative work has gravity done as the train goes up the mountain? (C) What is the net work on the train by all the forces acting on the train? (D) What is the speed of the train after it has travelled the 1,000 m?
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