wiz-icon
MyQuestionIcon
MyQuestionIcon
11
You visited us 11 times! Enjoying our articles? Unlock Full Access!
Question

A uniform rod of mass 'm' and length 'L' is tied to a vertical shaft. It rotates in horizontal plane about the vertical axis at angular velocity ω. How much horizontal force does the shaft excert on the rod?

A
mw2L
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Mw2L2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
mw2L4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
zero
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Mw2L2
Let T be the force applied horizontally on the rod. The acceleration of centre of mass is ω2L2, as it is moving in a circle of radius L2 .
Using Fext=MacmT=Mω2(L2)
Thus, the horizontal force exerted is 12Mω2L

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Centre of Mass in Galileo's World
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon