2008midterm1 - Phys 111 Fall 2008 General Physics: Class...

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Phys 111 Fall 2008 General Physics: Class Exam I 3 October 2008 Name: Total: /50 Instructions There are 7 questions on 6 pages. Show your reasoning and calculations and always justify your answers. Physical constants and useful formulae g = 9 . 81 m/s G = 6 . 67 × 10 11 N m 2 /kg 2 Question 1 One construction worker standing on the ground throws a brick toward another worker stand- ing above the ground on sca±olding. The worker on the ground throws the brick in such a way that its speed is exactly 0 . 0 m/s when it reaches the hand of the worker on the sca±olding. The brick travels vertically and the distance that it travels from the moment that it leaves the hand of the lower worker until it reaches the hand of the upper worker is exactly 4 . 0 m . Determine the speed with which the brick leaves the hand of the lower worker. /6
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Question 2 A ball is fred into the air at an angle oF 45 . Which oF the Following (choose one only) best represents the velocity and acceleration at the
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This note was uploaded on 06/21/2011 for the course MATHEMATIC 135 taught by Professor Phystago during the Spring '11 term at Waterloo.

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2008midterm1 - Phys 111 Fall 2008 General Physics: Class...

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