A little explanation for each answer would be great! Which of the following stat

Question

A little explanation for each answer would be great!

Which of the following statements is false of totally inelastic collisions? Actually, none of the other are false. The objects stick together. Momentum is conserved. The final velocities are the same. Both objects must completely stop. Which of the following statements is not correct when discussing impulse? The impulse is the change of momentum. Actually, all of the other answers are correct. The impulse helps define the average force. Impulse is conserved. The impulse is the area under the force-time graph.

Explanation / Answer

Question:1)
Both objects must completely stop: when such a situation happens the conservations of kinetic energy doesnot hold good, as well as the conservation of momentum.
Question:2)
The impulse helps define the average force: because Impulse = Force * time

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