A staircase has three steps each q0 cm high and 20 cm wide . What shou – InterviewSolution

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1.	A staircase has three steps each q0 cm high and 20 cm wide . What should be minimum horizontal velocity of a ball rolling off the uppermost plane as to hit dirctly the lowest plane ?
Answer» A staircase has three steps each q0 cm high and 20 cm wide . What should be minimum horizontal velocity of a ball rolling off the uppermost plane as to hit dirctly the lowest plane ?

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