need help In Experiment I, suppose the cart\'s mess Is 800 g, its initial veloci

Question

need help In Experiment I, suppose the cart's mess Is 800 g, its initial velocity is +1.6 m/s. and its final velocity is -1.4 m/s. The absolute value of Its momentum change is |Delta P| 2.4 kgm/s 3.7 kg m/s 5.1 kg m/s In Experiment I, suppose an average force of 18 N Is exerted on the cart In a coupon lasting 0.20 s. The net impulse exerted on the cart Is J = 1.3 N s 3.6 N s 5.9 N s A system's momentum Is conserved during a collision only If the collision is elastic. TRUE FALSE If a collision is inelastic, the system's final KE should be less than its initial KE. TRUE FALSE In Experiment II, suppose m, - 1348 g, m =- 764 g. and Just before the collision cart 1's velocity is +2.6 m/s. The system's initial momentum is P0 = 1.9 N s 2 .7 N s 3 .5 N S

Explanation / Answer

1. change in momentum P = mvf - mvi

P = 0.8 * (1.6 -(-1.4)

P = 2.4 kgm/s , option A

-------------------------------

2. Impulse J = F t = dP

F = 18 * 0.2

F = 3.6 Ns , option B

---------------------------------

3. True

4. True

5. P = mvx

Px = 0.764 * 2.6

Px = 1.9 Ns

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

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