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Derivation of Position-Velocity Relation by Graphical Method

When a ball i...

Question

When a ball is thrown up, it reaches a maximum height $h$ travelling $5$ m in the last second. Find the velocity with which the ball should be thrown up.

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Solution

$S_{n} = \frac{1}{2} g (2 t - 1) => 5 = \frac{1}{2} \times 10 \times (2 t - 1) => 1 = 2 t - 1 => t = 1 v = g t = 10 \times 1 = 10 m / s e c$

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Derivation of Position-Velocity Relation by Graphical Method

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