Exam-1-03

# Exam-1-03 - LAST NAME First name and initial DO NOT OPEN...

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Problems 1-2: 39-year-old Zhang Xinquan from Dehui city, Jilin province of China, was capable of pulling a 24,000 kg train 40 meters in 4 minutes with just his right ear. Assume that there was no friction, the tracks were horizontal, the train was initially at rest and that Zhang applied a constant force during the 4 minutes of pull. Problem 1 What was the speed of the train at the end of these 4 minutes? A) 0.17 m/s B) 0.33 m/s C) 10 m/s D) 8 m/s E) 0.1 m/s Problem 2 What was the force on Zhang’s ear during the pull? A) 33.3 N B) 16.7 N C) 10 N D) 48 N E) 41 N Problems 3-4: The mass of a student sitting in the bus is 70 kg. The bus is traveling at speed 55 mph in respect to the road (1 mile = 1600 meters). Problem 3
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## This note was uploaded on 11/02/2009 for the course PHYS 172 taught by Professor ? during the Spring '08 term at Purdue.

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Exam-1-03 - LAST NAME First name and initial DO NOT OPEN...

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