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Two block of masses m1 and m2 are connec...

Two block of masses `m1` and `m2` are connected with a massless unstretched spring and placed over a plank moving with an acceleration `'a'` as shown in figure. The coefficient of friction between the blocks and platform is `mu`

A

spring will be stretched if `a gt mu g`

B

spring will be compressed if ` a le mu g`

C

spring will be stretched if `a le mu g`

D

spring will be its natural length under all conditions if initial velocity of blocks and platform is zero.

Text Solution

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The correct Answer is:
D
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