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Two springs are in a series combination ...

Two springs are in a series combination and are attached to a block of mass `'m'` which is in equilibrium. The spring constants and extension in the springs are as shown in the figure. Then the force exerted by the spring on the block is :

A

`(k_(1)k_(2))/(k_(1)+k_(2))(x_(1) + x_(2))`

B

`k_(1)x_(1) + k_(2)x_(2)`

C

`k_(1)x_(1)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Tension both springs are same
i.e., `k_(1)x_(1) = k_(2)x_(2) = mg =` force exerted by lower spring on the block.
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Knowledge Check

  • A block of mass m compresses a spring iof stifffness k through a distacne l//2 as shown in the figure .If the block is not fixed to the spring the period of motion of the block is

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