A 6kg diskA has an initial velocity of 20m/s and strikes heaadon diskB that has

Question

A 6kg diskA has an initial velocity of 20m/s and strikes heaadon diskB that has a mass of 24kg and is originally at rest. If the collision is perfectly elastic, Determine the speed of each disk after the collision and theimpulse which disk A imparts to disk B really i dont understant the impulse part...... A 6kg diskA has an initial velocity of 20m/s and strikes heaadon diskB that has a mass of 24kg and is originally at rest. If the collision is perfectly elastic, Determine the speed of each disk after the collision and theimpulse which disk A imparts to disk B really i dont understant the impulse part......

Explanation / Answer

According to Conservation of Linear Momentum, the total momentum ofthe system must be conserved. For perfectly elastic elastic collisions, the total kinetic energyof a system must also be conserved. You now have two equations: 1.   (m1v1 +m2v2)initial = (m1v1 +m2v2)final      2.  ((1/2)m1v12 +(1/2)m2v22)initial= ((1/2)m1v12 +(1/2)m2v22)final       You have 2 equations with 2 unknowns, v1f andv2f . You can now solve it, knowing that kinetic energy is alsoconserved.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.