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homework 22

# homework 22 - homework 22 NOORANI ZOHEB Latest unpenalized...

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homework 22 – NOORANI, ZOHEB 1 Latest unpenalized work: Mar 21 2008 Friday 04:00 (after this date you can not make a perfect score). Work cutoff: Mar 22 2008, 4:00 am. Question 1, chap 11, sect 2. part 1 of 1 10 points A 0.451 kg bead slides on a straight fric- tionless wire with a velocity of 4.58 cm/s to the right, as shown. The bead collides elas- tically with a larger 0.626 kg bead initially at rest. After the collision, the smaller bead moves to the left with a velocity of 0.66 cm/s. 0 . 451 kg 4 . 58 cm / s 0 . 626 kg Find the distance the larger bead moves along the wire in the first 4.9 s following the collision. Answer in units of cm. Question 2, chap 11, sect 2. part 1 of 2 10 points Consider the collision of two identical par- ticles, where the initial velocity of particle 1 is v 1 and particle 2 is initially at rest. 1 2 v 1 After an elastic head-on collision, the final velocity of particle 2 v 2 is given by 1. v 2 = 2 v 1 2. v 2 = v 1 3 3. v 2 = 4 v 1 3 4. v 2 = v 1 4 5. v 2 = 0 6. v 2 = 3 v 1 4 7. v 2 = v 1 8. v 2 = 5 v 1 3 9. v 2 = v 1 2 10. v 2 = 2 v 1 3 Question 3, chap 11, sect 2. part 2 of 2 10 points Next replace particle 1 by a sledge hammer with mass m 1 = 10 kg, particle 2 by a golf ball with a mass m 2 = 10 g. Consider the

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