Question:

A ball rolls off the top of a stairway with
horizontal velocity u. The steps are 0.1 m high and
0.1 m wide. The minimum velocity u with which
that ball just hits the step 5 of the stairway will be

 

                                                       JEE-2024       

Solution:                
A ball rolls off the top of a stairway with horizontal velocity u. The steps are 0.1 m high and 0.1 m wide. The minimum velocity u with which that ball just hits the step 5 of the stairway will be JEE-2024

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