Equivalent spring constant?

well sorry,the image should be horizontal.

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Comments

That's easy.if the bock goes a distance x then the the change in the total length is 3x.(2x for the string+x for the spring)so the total is 3x.ad there are 2 forces.the spring force +the rod(the one that connects the pulley to block)so the net force is 3T as the tension=force of spring.so the net force on block is 33xk=9kx.and since we displace by x the effective is 9kx/x =9k

Spandan Senapati - 4 years, 4 months ago

but why should the tension be equal to spring force?