PHY303K HW8 - Perez (nap563) HW08 TSOI (58160) This...

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Perez (nap563) – HW08 – TSOI – (58160) 1 This print-out should have 24 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points A rigid circular wheel spins at constant angu- lar velocity about a stationary axis. Choose the picture below that correctly describes the relative magnitudes and directions oF the ve- locity vector oF points on the wheel. 1. 2. 3. 4. 5. 6. 7. 8. 002 (part 1 oF 4) 10.0 points A potter’s wheel oF radius 17 cm starts From rest and rotates with constant angular accel- eration until at the end oF 30 s it is moving with angular velocity oF 11 rad / s. What is the angular acceleration? Answer in units oF rad / s 2 . 003 (part 2 oF 4) 10.0 points What is the linear velocity oF a point on the rim at the end oF the 30 s? Answer in units oF m / s. 004 (part 3 oF 4) 10.0 points What is the average angular velocity oF the wheel during the 30 s? Answer in units oF rad / s. 005 (part 4 oF 4) 10.0 points Through what angle did the wheel rotate in the 30 s? Answer in units oF rad. 006 10.0 points The speed oF a moving bullet can be deter- mined by allowing the bullet to pass through two rotating paper disks mounted a distance 100 cm apart on the same axle. ±rom the angular displacement 36 . 7 oF the two bul- let holes in the disks and the rotational speed 1044 rev / min oF the disks, we can determine the speed oF the bullet.
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Perez (nap563) – HW08 – TSOI – (58160) 2 36 . 7 v 1044 rev / min 100 cm What is the speed of the bullet? Answer in units of m / s. 007 (part 1 of 2) 10.0 points A grinding wheel, initially at rest, is ro- tated with constant angular acceleration of 5 . 11 rad / s 2 for 3 . 82 s. The wheel is then brought to rest with uniform deceleration in 10 . 1 rev. Find the angular deceleration required to bring the wheel to rest. Answer in units of rad
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PHY303K HW8 - Perez (nap563) HW08 TSOI (58160) This...

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