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Homework 13

# Homework 13 - lim(kl9356 Homework 13 Weathers(17104 This...

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lim (kl9356) – Homework 13 – Weathers – (17104) 1 This print-out should have 13 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 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 66 cm apart on the same axle. From the angular displacement 33 . 7 of the two bul- let holes in the disks and the rotational speed 1320 rev / min of the disks, we can determine the speed of the bullet. 33 . 7 v 1320 rev / min 66 cm What is the speed of the bullet? Answer in units of m / s. 002 10.0 points A wheel starts from rest at t = 0 and rotates with a constant angular acceleration about a fixed axis. It completes the first revolution in 6 . 2 s. How long after t = 0 will the wheel com- plete the second revolution? Answer in units of s. 003 10.0 points A bicycle is turned upside down while its owner repairs a flat tire. A friend spins the other wheel of radius 0 . 4 m and observes that drops of water fly off tangentially. She mea- sures the height reached by drops moving ver- tically. A drop that breaks loose from the

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