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  4. A stair case contains ten steps each 10 cm high and 20 cm wide, The minimum horizontal velocity with which the ball has to be rolled off the upper most step, so as to bit directly the edge of the lowest step is ( apporximately )

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Q. A stair case contains ten steps each 10 cm high and 20 cm wide, The minimum horizontal velocity with which the ball has to be rolled off the upper most step, so as to bit directly the edge of the lowest step is ( apporximately )

Motion in a Plane

Solution:

R = $u \sqrt{\frac{2h}{g}}$