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An inextensible string is passing over a light pulley. One end of the string is connected to a block of mass 4m which is resting on a horizontal surface. To another end a plate of mass m is attached and is hanging in the air. A particle of mass m strikes from above with vertical velocity v` and sticks to the plate. Calculate maximum height attained by block of mass 4m.

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4 years ago

Vikas TU
14146 Points
```							Since Tension forces are acting on the blocks therfore momentum cannot be conserved for individual blocks.Therefore, For the whole system,Pi = Pfmv + 0 = (2m + 4m)v0v0 = v/6 m/s. From energy conservation,0.5mv^2 = 6mgx + 0.5mv0^2v^2/2 = 6gx + 0.5v0^2put v0 value in the above eqn.we get,x = 35v^2/72*6g m. is the displacement.
```
4 years ago
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Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions