can you help me with part b Question 3An uncontrolled 1050 kg car strikes squarely a motorway crash cushion in which the car is brought to rest bysuccessively crushing steel barrels. The length of the crash cushion is 6.1 m, and the magnitude F of the forcerequired to crush the barrels as a function of the distance x the car has moved into the cushion is given by80kN(0

the car stops when the KE of the car is absorbed by the resistive forces.

a) Determine an expression for the work done by the force F as a function of x. b) If the car strikes the crash cushion with a velocity of 119 km/h, determine the distance the car will move into the cushion before it comes to rest and the maximum deceleration of the car.

a) Determine an expression for the work done by the force F as a function of x. b) If the car strikes the crash cushion with a velocity of 119 km/h, determine the distance the car will move into the cushion before it comes to rest and the maximum deceleration of the car.

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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Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

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