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STD 11 - 2. motion in straight line — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 2. motion in straight line4 Marks
Question
A juggler throws balls vertically upwards with same initial velocity in air. When the first ball reaches its highest position, he throws the next ball. Assuming the juggler throws $n$ balls per second, the maximum height the balls can reach is
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Answer

Time taken by ball to reach highest point $=\frac{ u }{ g }$

Frequency of throw $=\frac{ g }{ u }= n$

$u =\frac{ g }{ n }$

$H _{\max }=\frac{ u ^{2}}{2 g }=\frac{\left(\frac{ g }{ n }\right)^{2}}{2 g }$

$\frac{g}{2 n^{2}}$

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