230 JOULE WERE SPENT IN LIFTING A 10 KG WEIGHT TO A HEIGHT 2 m .CALCULATE THE ACCELERATION WITH WHICH IT WAS RAISED .TAKE g=10m/s2
                   

2 years ago

Share

Answers : (1)

                    

by conservation of energy,


the energy spent in doing the work=change in ke + change in pe


therefore, 230=10 x 2 x 2  + 0.5 x 10 x v2


230=40+5v2


v2=190/5


=38m/s


now,v2=2as


a=38/4


=9.5 m /s2

2 years ago

Post Your Answer

More Questions On IIT JEE Entrance Exam

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
I want to learn calculus from basics so which book should i use to master in calculus???
 
 
Hello Anup, If you want to learn the calculus from basics, then you should follow Arihant – Differential Calculus Arihant – Integral Calculus IA Maron All the three books are...
  img
Jitender Singh 10 days ago
Sir, -How rank is decided in jee advanced? -Is it decided only on marks that we get in jee advanced paper?
 
 
It’s decided solely on the basis of the marks you secure on the JEE Advanced paper. Thanks & Regards Aziz Alam IIT Roorkee askIITians
  img
Aziz Alam 8 days ago
Hi, I got around 6000 rank in JEE-ADV and around 13000 in JEE-Mains. I have got ISM-Dhanbad ECE and counselling of NITs (and BIT Mesra) are still going on. I want to be in CSE/IT branch. Can...
 
 
Corresponding to your ranks( Main & Advanced), the chances of you getting CSE in top 3 NITs are less. You have a pretty good chance of getting CSE BITS Mesra. ECE-ISM Dhanbad is a very...
  img
Aziz Alam 12 days ago
Can a PCMC student apply for AIIMS exam?
 
 
Hi An applicant needs to hae Biology subject in Class 12 th in order to appear for AIIMS exam, See here: Aspirants should have passed the 12th Class under School Certificate Examination or...
  img
Sumreet Johar 20 days ago
 
thank you
 
Chammu 17 days ago
 
thank you
 
Chammu 17 days ago
I want electrical engineering at IIT. But I don't think I will get EE.After looking at the course syllabus, I found that Engineering Physics is very close to Electrical engineering.But my...
 
 
Hi, Engineering Physics is indeed very similar to Electrical Engineering branch. In fact, it will be more informative but a little less practical. You can go for it. Also, after having a...
  img
Apoorva Arora one month ago
 
Ok. Does EP involve any Integrated Circuits Programming? Something along the lines of Robotics?
 
Abcdefg one month ago
 
I am a student of electrical enginnering dept of IITG, so having seen the curriculum of EP I hardly notice any similarities in the syllabus of EP and EE except in elecrodynamics and...
 
chandrakiran anem one month ago
Which books should I refer for preparation of AIIMS
 
 
AIIMS Delhi Medical examination preparation , Handbook of biology , Solved papers of previous year etc.
 
Saloni Rakholiya 9 days ago
 
AIIMS Delhi Medical examination preparation , Handbook of biology , Solved papers of previous year etc.
 
Saloni Rakholiya 9 days ago
View all Questions »