AIPMT | 2015Center of MassHard
Question
A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is :-
Options
A.
B.
C.
D.
Solution
By torque balancing about B
NA(d) = W(d-x)
⇒ NA =
Hence option (3)
Create a free account to view solution
View Solution FreeMore Center of Mass Questions
A system of particles has its centre of mass at the origin. The x-coordinates of all the particles...A sphere of mass m1 = 2kg collides with a sphere of mass m2 = 3kg which is at rest. Mass m1 will move at right angle to ...A small ball collide with a heavy ball initially at rest. In the absence of any external impulsive force, it is possible...A ball moving with a velocity v hits a massive wall moving towards the ball with a velocity u. An elastic impact lasts f...A ball collides with an inclined plane of inclination θ after falling through a distance h. If it moves horizontall...