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Engineering and Tech / Engineering Mechanics Dynamics (1) 1 14 / Chapter 14 / Problem F14-4

Engineering Mechanics Dynamics (1) 1 | 14th Edition | ISBN: 9780133915389 | Authors: Russell C. Hibbeler

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The 1.8-Mg dragster is traveling at 125 m>s when the

Chapter 14, Problem F14-4

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QUESTION:

The 1.8-Mg dragster is traveling at 125 m/s when the engine is shut off and the parachute is released. If the drag force of the parachute can be approximated by the graph, determine the speed of the dragster when it has traveled 400 m.

Questions & Answers

QUESTION:

The 1.8-Mg dragster is traveling at 125 m/s when the engine is shut off and the parachute is released. If the drag force of the parachute can be approximated by the graph, determine the speed of the dragster when it has traveled 400 m.

ANSWER:

Problem F14-4

The 1.8-Mg dragster is traveling at 125 m/s when the engine is shut off and the parachute is released. If the drag force of the parachute can be approximated by the graph, determine the speed of the dragster when it has traveled 400 m.

Step by Step Solution

Step 1 of 2

Given data:

- The mass is m = 1800 kg

- The speed is u= 125 m/s

- The distance is d=400 m

The average drag force is:

Applying work-energy theorem::

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