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
sir i paid the amount on jeeadv site through icici credit card. but did not recieved any acknowledgement page. now its showing that the payment has been made but what should i upload against...
 
 
Hello Dear student, You should have got the transaction details from your account, print the transaction refrence number and send or upload it.............................
  img
Sher Mohammad 12 days ago
Which one is the best recommended book for physics for jee (main+advance)????????? D.C. pandey (5 volumes) by arihant publishers B.M. sharma (5 volumes) by CENGAGE Tata mcgraw hill (Complete...
 
 
1.Young & Freedman -University Physics 2.Resnick & Halliday These are kind of the books which stress on concepts as far as Physics is concerned.JEE is all about concepts. So I...
  img
Aziz Alam 20 hours ago
 
I am in 11 th,,, so i have just started preparing for jee.Can I directly use these for OR at first i have to solve some basic books????? @ AZIZ ALAM SIR
 
Sankalp Tiwari 20 hours ago
View all Questions »