WileyPLUS: MyWiley Cutnell, Physics, 10e STANDARD VIEW PRINTER VERSION BACK NEXT

Question

WileyPLUS: MyWiley Cutnell, Physics, 10e STANDARD VIEW PRINTER VERSION BACK NEXT As the drawing illustrates, two disks with masses mi and m2 are moving horizontally to the right at a speed of vo- They are on an airhockey table, which supports them with an essentially frictionless cushion of air. They move as a unit, with a compressed between them, which has a negligible mass. Then the spring is released and allowed to push the disks outward. Consider the situation where disk 1 comes to a momentary halt shortly after the spring is released. Assuming that m1 1.1 kg, m2 2.2 kg, and vo +4.6 m/s, find the velocity of disk 2 at that moment. spring m1 m2 vO Vf2 =

Explanation / Answer

using conservation of momentum

(m1 + m2) vo = m1 vf1 + m2 vf2

(1.1 + 2.2) (4.6) = (1.1) (0) + (2.2) vf2

vf2 = 6.9 m/s

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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