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AP EAMCET · PHYSICS · Oscillations

As shown in the figure, an iron block A of volume 0.25 m3 is attached to a spring S of unstretched length 1.0 m and hanging to the ceiling of a roof. The spring gets stretched by 0.2 m. This block is removed and another block B of iron of volume 0.75 m3 is now attached to the same spring and kept on a frictionless incline plane of 30° inclination. The distance of the block from the top along the incline at equilibrium is

  1. A 1.1 m
  2. B 1.3 m
  3. C 1.6 m
  4. D 1.9 m
Verified Solution

Answer & Solution

Correct Answer

(B) 1.3 m

Step-by-step Solution

Detailed explanation

The free body diagrams of the blocks are shown in the figure below. At equilibrium, the net force on a body is zero. Therefore, For block A, mAg=kx⇒k=mAgx And for block B, mBgsin30°=kx'⇒x'=mBg2mAgx Since the same material is used for both the blocks, their…
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