a. kg S. c. 0.416 m/s. d. zero. Example 79 I traveling with an initial momentum

Question

a. kg S. c. 0.416 m/s. d. zero. Example 79 I traveling with an initial momentum of 2.4 kg m/s bounces off a wall and comes back in the opposite momentum of-2.4 kg m/s. What impulse would be required to produce this change? Round direction with a the final answer to one decimal place. Answer: -4.8 Ns 4. Conservation of Momentum during collision or explosion: Example 7.10: second skater with a mass of 32 kg. Both skaters are with a mass of 73 kg pushes offagainst a second skater with a mass of 32 kg. Both skaters are initially at rest. If the larger skater moves off with a speed of 3 m/s in the positive direction, what is the corresponding speed of the smaller skater? Round the final answer to one decimal place. Answer: 6.8 m/s Chapter 8 Rotational Motion of Solid Objects

Explanation / Answer

7.9)

from the relation

impulse = change in momentum

I = pf-pi

given pf = -2.4 kgm/s

pi = 2.4 kgm/s

I = -2.4-2.4 = -4.8 kg m/s

7.10) from the conservation of momentum

initial momentum = final momentum

m1u1+m2u2 = m1v1+m2v2

0+0 = 73*3-32*v2

v2 = 73*3/32 = 6.8 m/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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