Two springs, each of spring constant k =...

Two springs, each of spring constant k = 100N/m are attached to a block of mass 2kg as shown in figure. The block can slide smoothly along horizontal platform clamped to the opposite walls of a trolley of mass 5kg. The block is slightly displace dand then released. The period of oscillation is (in seconds). (all surfaces are smooth)

`T=2pisqrt(7/1000)`

`T=2pisqrt(1/140)`

`T = 2pisqrt(1/20)`

`T=2pisqrt(49/100)`

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