Each of 100 identical blocks sitting in a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force 100 N.(adsbygoogle = window.adsbygoogle || []).push({});

a) what is the tension in the string connecting block 100 to block 99

B) what is the tension in the string connecting block 50 to 51?

I don't know how to do this. The only equation I got was T2-T1=ma for box 99 where T2 is the tension string attaching to box 98 and T1 is the tension in the string attached to 100. Also for box 100 I got -T=ma and plugged this into the equation -100 + T=ma and got T=50 N but this is wrong for part A and is supposed

To be the answer for part B but I don't see why. Can you please explain how to do this?

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# Homework Help: Question about Tension 100 identical blocks

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