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A small block of mass 10 g is projected along the smooth path from rest as shown in the given figure below. Find its speed at the point B

 

Option 1 -

1m/s

Option 2 -

10m/s

Option 3 -

20m/s

Option 4 -

None of these

0 1 View | Posted a week ago
Asked by Shiksha User

  • 1 Answer

  • R

    Answered by

    Raj Pandey | Contributor-Level 9

    a week ago
    Correct Option - 2


    Detailed Solution:

    m  =l0 kg

    h= 5m

    By work energy theorem

    m g h = 1 2 m v 2

    v 2 = 2 gh 

    v = 2 g h

    v = 1 0 0

    v=10m/s

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