AM ractice Assignment 6 (CH 6) Begin Date: 9/172017 6.00.00 AM- Due Date: 11/1/2

Question

AM ractice Assignment 6 (CH 6) Begin Date: 9/172017 6.00.00 AM- Due Date: 11/1/2017 11:59.00 PM End Date: 11/22017 200.00 12 ms. It collides with a (9% ) Problem 8: A chunk of clay m1-0.33 kg is thrown in the x direction with an initial velocity of v cube of m2 4.9 kg initially at rest and sticks. 33% Part (a) write an expression for the system's final velocity vf Grade Summary Deductions 0% Potential 100% Submissions 4 5 6 12 3 Atfempts remaining 7 (04.0 per attempt) detailed view Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining:- Feedback: 0Ne deduction per feedback 33% Part (b) Assume the cube had an initial velocity of vb in the positive x direction write an expression for the final velocity of the system 33% Part (c) If the cube has an initial velocity of v,-2.1 ms, what is the final velocity of the system in meters per second?

Explanation / Answer

a) for the final velocity vf

Using conservation of momentum

(m1 + m2) * vf = m1 * v

vf = m1 * v/(m1 + m2)

b) for the final velocity vf

Using conservation of momentum

(m1 + m2) * vf = m1 * v + m2 * vb

vf = (m1 * v + m2 * vb)/(m1 + m2)

c)

vf = (0.33 * 12 + 4.9 * 2.1)/(0.33 + 4.9)

vf = 2.72 m/s

the final velocity of the system is 2.72 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.