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From a tower of height H, a particle is thrown vertically upwards with a speed u. The time taken by the particle, to hit the ground, is n times that taken by it to reach the highest point of its path. The relation between H, u and n is -

1. gH = (n – 2) 2 u 2
2. 2 gH = nu 2 (n – 2)
3. gH = (n – 2)u 2
4. 2 gH = n 2 u 2

Correct answer: 2 gH = nu 2 (n – 2)

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