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
Which book should I buy for maths …...arihant prakashan or tata macgraw hill
 
 
Hello student, Both the books are good. but do not buy too many books as it will only lead to confusion. take one book and use it as the text book. you may use the other as a reference book....
  img
Latika Leekha one month ago
i am an average student. i scored 9.4 cgpa in cbse 10 th boards. my problem is that i am facing difficuly in managing iit jee coaching syllabus. however i am doing good in school as i...
 
 
You need to understand this fact clearly,that you are learning completely new stuff and also the that’s being taught.This is challenging to everybody and you have to be patience.By...
  img
Aziz Alam one month ago
i have got a seat in iit roorkee and paid the fee in the frst round of seat allocation. i have to inform to iit roorkee for my admission. but due to some reasons i cannot go to roorkee. the...
 
 
JEE office in Roorkee Contact No. +91-1332-285224, 284272 U.G. Admission Contact No. +91-1332-284289, 285200 Registrar IIT Roorkee Contact No. +91-1332-285311 The above are the means by...
  img
Aziz Alam one month ago
 
i tried to contact them but the phones sometimes were busy and sometimes it doesn’t connect. can i try a letter to the chairman of jee advanced for refund. they have specified they wont give...
 
ranganath one month ago
define AIPMT
 
 
Stands for All India Pre Medical Test Thanks & Regards, Dinesh Sajnani AskIITians Faculty
  img
Dinesh 2 months ago
(a) 5 (b) 6 (c) 7 (d) 8
 
 
Hi, Please ask your question again... its not clear .
 
Vijay Luxmi Askiitiansexpert 4 years ago
What is ZigBee technology?
 
 
ZigBee technology is a low data rate, low power consumption, low cost, wireless networking protocol targeted towards automation and remote control applications. IEEE 802.15.4 committee...
 
Simran Bhatia 5 years ago
View all Questions »