A ball of mass 0.20 kg is fired with velocity 120 m/s into the barrel of a sprin

Question

A ball of mass 0.20 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of the ball's initial kinetic energy is stored in the spring?

A ball of mass 0.20 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of the ball's initial kinetic energy is stored in the spring?

Explanation / Answer

0.65*120=(0.65+2.4)*u u=25.57 m/s fraction=(0.65+2.4)*25.57^2/(0.65*120^2)) =0.213

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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