I got stuck on some part of this questions. please help! thank you. Moving block

Question

I got stuck on some part of this questions. please help! thank you.

Moving blocks connected by a spring Two identical 0.17 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, as shown in the upper diagrarn, where x2 0.06 m. Then a constant force of 9 N to the right is applied to hlock 2, and at a later time the blocks are in the new positions shown in the lower diagram, where x10.02 m and x0.1 m. At this tinal time, the system is moving to the right and also vibrating, and the spring is stretched 1 Initial Final x=x1 MOTTON OF THF CENTFR OF MASS OF THF FXTENDED SYSTEM What is the initial location of the center of mass of the extended system? XCM.initi0.03 What is the final location of the center of mass of the extended systcm? XCM rinal-0.06 How far did the center of mass of the extended system move? POINT PARTICLE SYSTEM What is the initial location of the point particle system? Xitial0.03 What is the final location of the point particle system? Xial0.06 rm How far did the point particle system move? Ax -0.03 In the point particle system, what was the distance through which the point of application of the force moved? distance 0.03

Explanation / Answer

For final speed -

(1/2)*0.34*v^2 = 0.27

V= 1.26 m/s

Work done in external system

= 0.27 J

Change in energy = 0.27 J

Total energy= 0.27 J

Kinetic energy= 0.27 J

Speed= 1.26 m/s

Total energy= 0.27J

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