Plzzzzzz explain me above question for rotational motion.above givn pic has question in it
Nikita Mumbarkar , 7 Years ago
Grade 12th pass
Mechanics> Plzzzzzz explain me above question for ro...
1 AnswersPushkar Prateek
Last Activity: 7 Years ago
Just to visualise imagine holding a Dumbell in your palm, this is the system. And a line passing perpendicularly through COM of this dumbell into your palm, this would be the axis. And dumbell will rotate in the plane of your palm only.
The two ends are having masses M1 and M2 and we have to find MOI about COM of the system.
First find COM of the system by formula (M1X1 + M2X2) / M1+ M2 , from any one end.
Then apply MOI formula for point mass and add up for both masses I = M1 R12+ M2 R22 , R1 and R2 being the distance of the masses from their COM.
Option A is correct.
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free
Enter text here...
Other Related Questions on Mechanics
A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mmat the free end, where a small mass of 2 g is positioned. determine(i) The velocity of the end when passing through the zero position(ii) The acceleration at maximum displacement(iii) The maximum kinetic energy of the mass
Mechanics
2 Answer Available
Last Activity: 2 Year ago(s)
An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of springconstant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by thedamping constant b = 0.07kg/s.(i) Find the period of the damped oscillation.(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?
Mechanics
1 Answer Available
Last Activity: 2 Year ago(s)
If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0
Mechanics
1 Answer Available
Last Activity: 2 Year ago(s)
A particle is traveling in a circle of radius R =2.5m and with an angular velocity of 10 rad/s. What is the centripetal acceleration of the particle? The particle begins to slow down with an angular acceleration of -1 rad/s2. After 5 seconds, what is the centripetal acceleration and the tangential acceleration fo the particle?
Mechanics
1 Answer Available
Last Activity: 2 Year ago(s)
If the acceleration of block A is 5 m/s^2Find the acceleration of block B
Mechanics
1 Answer Available
Last Activity: 2 Year ago(s)