help@askiitians.com

+91-87964 74404

Grade 11IIT JEE Entrance Exam

Mass of the bob of a simple pendulum oflength L is m. If the bob is projectedhorizontally from its mean position withvelocity underroot 4gl , then the tension in the stringbecomes zero after a vertical displacement of1)L/3 2)3L/4 3) 4L/3 4) 5L/3

Nandan Kumar

8 Years agoGrade 11

1 Answer

MeetShah

8 Years ago

U need to use two equations 1 mv^/r =tension -mg cosQ

and the second one that of energy conservation

That should solve ur problem

Thanks!

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: 10 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: 4 Years ago

Can class 9th students study syllabus class of 11th

iit jee entrance exam

3 Answers Available

Last Activity: 4 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: 4 Years ago

View all Questions