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 1 of 4.
Milan said:
1 decade ago
As the surface is smooth so there is not the friction, hence unstable.
Akshay Athate(jcet) said:
1 decade ago
Unstable because of its rolling movement, not stable because of convex surfaces, not neutral because cylindrical shape.
Shwetha said:
1 decade ago
What is 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.
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.
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.
Karthik said:
1 decade ago
What you meant by 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.
Raju Kumar said:
1 decade ago
What is convex surface?
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.
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