two identical 0.15 kg blocks are initially at rest on a nearly frictionless surf

Question

two identical 0.15 kg blocks are initially at rest on a nearly frictionless surface, connected by an unstreched spring, where x2 = 0.06 m. Then a constant force of 13N to the right is applied to block 2 and at a later time the blocks are in the new positions shown in the lower diagram, x1=0.02 m and x3=0.11m. at this final time the system is moving to the right and aslo vibrating and the spring is stretched. What is point particle system a) Xinitial ? b) Xfinal ? c)deltaX ?d) what was the distance through which the point of applicxation of force moved? e) how much work has been done ?

Explanation / Answer

it's your (Ktot + U)final - Ktrans,final since Ktot = K trans + Krel therefore your answer is 0.42 J

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