wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A chain of mass m and length L is over hanging from the edge of a smooth horizontal table such that 3/4th of its length is lying on the table. The work done in pulling the chain completely on to the table is:

A
mgL16
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
mgL32
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
3mgL32
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
mgL8
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D mgL32
W.D =Δ(P.E)
= mass of hanging part × height of COM of hanging part ×g
=m4×L8×g=mgL32
54721_3473_ans_798c1b5d2a88415d8524e326c6379c90.png

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Surface Tension of Water
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon