A ball roll off the top of stairway with a constant horizontal velocity u , . If the step are ( h ) meter height and ( w ) meter wide , show that the ball will just hit the edge of Nth step if n = 2h u square / g w square. PLEASE GIVE RIGHT ANSWER

A ball roll off the top of stairway with a constant horizontal velocit

1.	A ball roll off the top of stairway with a constant horizontal velocity u , . If the step are ( h ) meter height and ( w ) meter wide , show that the ball will just hit the edge of Nth step if n = 2h u square / g w square. PLEASE GIVE RIGHT ANSWER
Answer» Explanation:Horizontal distance COVERED by ball =nb Vertical distance covered by ball =NH If the time taken to hit the edge of nth STEP is t, then nb=ut nh=12gt2 Eliminating t, we get, nh=12g(nbu)2 n=2hu2gb2 Hence B is the correct ANSWER.

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A ball roll off the top of stairway with a constant horizontal velocity u , . If the step are ( h ) meter height and ( w ) meter wide , show that the ball will just hit the edge of Nth step if n = 2h u square / g w square. PLEASE GIVE RIGHT ANSWER​

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A ball roll off the top of stairway with a constant horizontal velocity u , . If the step are ( h ) meter height and ( w ) meter wide , show that the ball will just hit the edge of Nth step if n = 2h u square / g w square. PLEASE GIVE RIGHT ANSWER