help@askiitians.com

+91-735-322-1155

IIT JEE Entrance Exam> a ball is thrown vertically upwards from ...

question mark

a ball is thrown vertically upwards from a point A 125cm above the ground and passes through A on its downward journey the velocity of the body when it is at a height of 70m above the ground is?

Shaila , 7 Years ago

Grade 12th pass

1 Answers

Eshan

Last Activity: 7 Years ago

Dear student,

Displacement of particle when it is 70m above the ground= $-(125-70)m=-55m$

Hence from equation of motion $v^2=u^2+2as$ ,

$v=\sqrt{u^2+2(-10)(-55)}m/s$
The initial velocity of the particle needs to be given to know the velocity at that time.

Hope it helps. Regards.

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

Let S={x:x belongs to R(√3+√2)^(x^2-4) - (√3-√2)^(x^2-4)=10}. Then n(S) is equal to-

iit jee entrance exam

1 Answer Available

Last Activity: 2 Months ago

My rank is 29k, General, should I opt for any state college cse branch or some Nits in which in which I am getting ECE , chemical, mechanics etc....

iit jee entrance exam

1 Answer Available

Last Activity: 3 Years ago

How is Ranquer Eduzone,comparing, Akash,Fitjee,Resonance,Naryana

iit jee entrance exam

1 Answer Available

Last Activity: 3 Years ago

Can class 9th students study syllabus class of 11th

iit jee entrance exam

3 Answers Available

Last Activity: 3 Years ago

Sum of series 2[n/2] ! [n/2]!/ n! [2Co-2C2+3C2....+[-1]^n[n+1]2Cn] where n is an even positive integer. Kindly provide solution of this question and how to generalise this. How do we know that which expansion will give this?

iit jee entrance exam

1 Answer Available

Last Activity: 3 Years ago

View all Questions