Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 11)
11.
A smooth cylinder lying on its convex surface remains in __________ equilibrium.
Discussion:
32 comments Page 3 of 4.
@Cj said:
1 decade ago
It has to be neutral because even when it is disturbed - it's centre of gravity remains at the same position. Similar to a cone resting on it's side.
@hassan_ayo said:
1 decade ago
Well it simple cause the surface of that is talk about is the convex surface and it is not a plane nor smooth surface. And therefore the cylinder cannot be stable.
Manali said:
1 decade ago
@Denim Jeans.
Here it is a smooth surface, So the coefficient of friction is zero.
F = n*R.
Where, R = normal force.
n = coefficient of friction.
F = force applied.
Then,
If n=0 F=0.
i.e it cannot be stable.
Here it is a smooth surface, So the coefficient of friction is zero.
F = n*R.
Where, R = normal force.
n = coefficient of friction.
F = force applied.
Then,
If n=0 F=0.
i.e it cannot be stable.
Raju Kumar said:
1 decade ago
What is convex surface?
K.S Pal said:
1 decade ago
Actually for justify stability we consider all possible way of cylinder and we see here it is kept on floor by means of convex surface so if we apply small disturbance then it will roll on the floor but if we kept it vertically on base then it will be stable so it is unstable.
Karthik said:
1 decade ago
What you meant by convex surface?
Shabana said:
1 decade ago
Because of smooth cylinder it lie on the convex surface but it not stable certain position cylinder is fall down because of convex surface.
ADEBC said:
1 decade ago
It is not neutral because when disturb it does not return to its initial position and center of gravity is lower while it return and center of gravity is unchanged in neutral equilibrium.
Denim Jeans said:
1 decade ago
Why not neutral equilibrium? it applies on rolling cylinders as well, as long as center of gravity remains unchanged. Please reply, I'm confused on this one.
Shwetha said:
1 decade ago
What is neutral equilibrium?
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