A classical mechanics problem by Yogesh Ghadge

Classical Mechanics Level 3

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 :

gH=(n-20)^2 * u^2 2gH=nu^2(n-2) gH=(n-2)u^2 2gH=n^2 * u^2

Yogesh Ghadge by Yogesh Ghadge , 22, India

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2 solutions

This is an IIT-JEE 2014 question...by the way...nice:)

2 Helpful 0 Interesting 0 Brilliant 0 Confused

If you have not cheat prove by giving the process of getting ans

Yogesh Ghadge - 6 years, 11 months ago

If you have not cheat prove by giving the process of getting answer

Yogesh Ghadge - 6 years, 11 months ago

IITJEE mein inta easy question nahi aa sakta

Md Zuhair - 4 years ago

But how do you get that answer or you have done cheating by referring the answer key of jee main

Yogesh Ghadge - 6 years, 11 months ago
Rudra Gupta
Feb 11, 2015

let time taken to reach max hieght-t and time taken to hit the ground - T

>>>>>>>>>>>>>>>>>>>>>>>>> t=u/g and >>>>>>>>>>>>>>>>>>>>>>> -H = uT- 1/2 gT T and T=nt so -H=nu u/g-1/2 n n u*u/g or 2gH=nu^2(n-2)

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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