QJEEM22Ph15fa: JEE Main 2022 Physics - Class 11 JEEM22Ph15fa Solution: A ball is released from a height h. If t 1 and t 2 be the time…

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QJEEM22Ph15fa: JEE Main 2022 Physics - Class 11 JEEM22Ph15fa Solution: A ball is released from a height h. If t 1 and t 2 be the time…

A ball is released from a height h. If $t_{1}$ and $t_{2}$ be the time required to complete first half and second half of the distance respectively. Then, choose the correct relation between $t_{1}$ and $t_{2}$ .

Multiple Choice Options

A t1=(2)t2
B t1=(2−1)t2
C t2=(2+1)t1
D t2=(2−1)t1

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Accepted Answer

JEE Main 2022 (Online) 29th July Evening Shift Physics - Motion in a Straight Line Question 40 English Explanation

For first $\frac{h}{2}$ distance,

$\frac{h}{2} = \frac{1}{2} g t_{1}^{2}$

$\Rightarrow h = g t_{1}^{2}$

For total distance h,

$h = \frac{1}{2} g (t_{1} + t_{2})^{2}$

$\Rightarrow g t_{1}^{2} = \frac{1}{2} g (t_{1} + t_{2})^{2}$

$\Rightarrow 2 t_{1}^{2} = (t_{1} + t_{2})^{2}$

$\Rightarrow \sqrt{2} t_{1} = t_{1} + t_{2}$

$\Rightarrow (\sqrt{2} - 1) t_{1} = t_{2}$

QJEEM22Ph15fa: JEE Main 2022 Physics - Class 11 JEEM22Ph15fa Solution: A ball is released from a height h. If t 1 and t 2 be the time…

Multiple Choice Options

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