An uncontrolled 1050 kg car strikes squarely a motorway crash cushion in which the car is brought to rest by successively crushing steel barrels. The length of the crash cushion is 6.1 m, and the magnitude F of the force required to crush the barrels as a function of the distance x the car has moved into the cushion is given by 80kN (0 < x < 1.7m) (1.7 < x < 4.7m) (4.7 < x < 6.1m) 110kN 155kN a) Determine an expression for the work done by the force F as a function of x.

An uncontrolled 1050 kg car strikes squarely a motorway crash cushion in which the car is brought to rest by successively crushing steel barrels. The length of the crash cushion is 6.1 m, and the magnitude F of the force required to crush the barrels as a function of the distance x the car has moved into the cushion is given by 80kN (0 < x < 1.7m) (1.7 < x < 4.7m) (4.7 < x < 6.1m) 110kN 155kN a) Determine an expression for the work done by the force F as a function of x.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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