Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
3rd Edition
ISBN: 9780133593211
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 6, Problem 5RQ
  1. 5. A 1-kilogram mass has just been dropped from the roof of a building. I need to catch it after it has fallen exactly 100 meters. If I weight 80 kilograms and start running at 7 meters per second as soon as the object is released, how far away can I stand and still catch the object?
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38. Calculate the initial velocity of a 1.00 kg artillery shell that is moving north when it explodes into three fragments: 0.200 kg moving 500 m/s east, 0.500 kg moving 566 m/s north east, and a third piece moving 1000 m/s. 39. A 300-gram model airplane is flying 15.0 m/s straight north when a gust of wind applies a force of 75.0 N west on the airplane for a time of 80.0 ms. Calculate the velocity the airplane will have as a result of the gust of wind.
Particles of mass 600 g and 400g are connected by a light inextensible string passing over a smooth fixed pulley. Initially both masses hang vertically, 30 cm above the ground. If the system is released from rest, find the greatest height reached above ground by the 400 g mass. Match each item to a choice: Max. height reached by 400g block: Choices: #. 66 cm : 74 cm # 36 cm # 30 cm # 44 cm
2. There are three pillbox hats labelled as shown containing toothpaste such that the masses of hats A, B and C are 2.5 kg, 3.7 kg, and 1.3 kg respectively. The system is released from rest and the coefficient of kinetic friction is 0.1 between the table and the hats. A) Find the tension in the string connecting the two hanging hats B and C. B) How far down does hat C travel between 0.1 seconds after release and 0.2 seconds after release? A B C
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