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SHM Formulae

Two blocks ar...

Question

Two blocks are connected by a spring of natural length $2 m$ . the force constant of spring is $200 N / m$ .
Find spring force in following situation:
If block ' $A$ ' and ' $B$ ' both are displayed by $0.5 m$ in same direction.

A

200 N

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B

0 N

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C

15 N

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D

100 N

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Solution

The correct option is B $0 N$
Since, both blocks are displayed by 0.5 m in same direction, so change in length of spring is zero. Hence, spring force is zero.

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