(a) A body of weight 200 N body moving to the left with a velocity of 10 m/s collides with another body of weight 610 N body which isat rest. After impact the body which is moving before impact comes to rest. Find the final velocity of body after impact and thecoefficient of restitution .(b)A vehicle of mass 28 tonnes runs into a buffer stop having two buffer springs connected in series each of 1400 kN/cm and 2750kN/cm stiffness respectively. Find the maximum compression of the springs, if the vehicle is travelling at 85 km/hr. Also calculate theload acting on the spring.a,SolutionThe final velocity of body after impact in m/s isThe coefficient of restitution isb,SolutionThe maximum compression of the spring in mm isThe load acting on the spring in kN is

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Engineering

Mechanical Engineering

stitu

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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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

(a) A body of weight 200 N body moving to the left with a velocity of 10 m/s collides with another body of weight 610 N body which is
at rest. After impact the body which is moving before impact comes to rest. Find the final velocity of body after impact and the
coefficient of restitution .
(b)A vehicle of mass 28 tonnes runs into a buffer stop having two buffer springs connected in series each of 1400 kN/cm and 2750
kN/cm stiffness respectively. Find the maximum compression of the springs, if the vehicle is travelling at 85 km/hr. Also calculate the
load acting on the spring.
a,Solution
The final velocity of body after impact in m/s is
The coefficient of restitution is
b,Solution
The maximum compression of the spring in mm is
The load acting on the spring in kN is

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