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Forums
Physics
Classical Physics
Mechanics
Mass compressing an unattached spring
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[QUOTE="Heikki Tuuri, post: 6207227, member: 662638"] ###/\/\/\/\ <--- ● wall spring mass Let t_0 be the time when the spring has compressed the most. If everything is standing still at that moment and the spring is lossless, then flip the direction of the time at t_0 and play the history backwards. The mass bounces back and the spring is left static. However, the speed of sound cannot be infinite in a spring. Some kinetic energy of the mass is converted to vibration of the spring. Everything is not standing still at the time t_0. It would be a miracle if the mass would absorb all that vibration by the time it detaches from the spring. The vibration will cause the spring to bounce from the wall and follow the mass. [/QUOTE]
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Forums
Physics
Classical Physics
Mechanics
Mass compressing an unattached spring
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