Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
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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There are two springs attached to a mass with an unknown weight. The springs have a stiffness of k = 50 N/m with an unstretched length of 5 m. When the springs are horizontal and unstretched, the unknown mass is released from rest. The mass falls 4m and the mass reaches its maximum velocity.   1. Find acceleration on the mass at its maximum velocity.   2. Find the mass of the mass.   3. To find maximum velocity, use the work-energy.
Five objects in a region where the acceleration due to gravity is 30.2 ft/s2 are as follows: x1 = 350 g of mass; x2 weighs 950gf; x3 weighs 25 poundals; x4 weighs 2lbf; x5 is 0.40 slug of mass. What is (a) the total mass expressed in gm, and (b) the total weight expressed in kgf.
The force that causes the cart to accelerate along the track was the tension in the string. It was the net force on the cart since the vertical forces on the cart add to zero. How does it compare to the weight of the hanger and mass? Explain why this must be so based on what happened to the hanger and 10 g mass hanger as the cart accelerated along the track. The graph demonstrates change in kinetic energy vs. distance using the 10 g mass hanger.
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