When an object is balanced so that a displacement neither raises nor lowers its center of gravity?
When an object is balanced so that a displacement neither raises or lowers its center of gravity, the object is said to be in neutral equilibrium.
Which has more rotational inertia a bicycle wheel or a solid disk of the same mass and diameter?
Which has more rotational inertia, a bicycle wheel or a solid disk of the same mass and diameter? the wheel.
Where is the center of gravity of a baseball bat located?
2. Loop the ribbon around the bat and find the location where the bat will balance so that it rests horizontally. That's the baseball bat's "Center of Gravity" (CG). 3.
Which of the following is an example of neutral equilibrium?
A marble lying on a horizontal surface, undisturbed The marble is not moving as there is no force acting on it. The marble is lying there on its own without any support of external force. It will only move when an external force is applied on it. Hence it is said to be in neutral equilibrium.
Which objects roll down an incline with the greatest acceleration?
You should find that a solid object will always roll down the ramp faster than a hollow object of the same shape (sphere or cylinder)—regardless of their exact mass or diameter. This might come as a surprising or counterintuitive result!
Is the potential energy more less or unchanged when the CG of an object is raised?
Is the gravitational potential energy more, less, or unchanged when the CG of an object is raised? When an object's CG is raised, its gravitational potential energy increases. This means that you have to input energy to get this to happen.
Which will roll faster down a hill an empty car tire or the same tire mounted on a rim?
Which rolls to the bottom of a hill sooner, an empty car tire or the same tire mounted on a rim? The mounted tire, regardless of its weight. A ring and a disk roll down a hill together. Which reaches the bottom first?
What part of an object follows a smooth path when the object is made to spin through the air?
The center of gravity of an object is the part of the object that follows a smooth path (parabolic projectile trajectory) as an object spins through the air or across a flat, smooth surface (straight line, constant speed – Newton's First Law).
Where is its center of mass for a baseball bat closer to the grip or the thick end?
Since there is less weight at the handle end, the center of gravity of the bat is farther from the handle than the heavier end.
Is a neutral equilibrium when its centre of gravity?
When an object in neutral equilibrium has a disturbing force applied, the centre of gravity remains at the same height and the object does not move when the disturbing force is removed.
What is stable equilibrium and neutral equilibrium?
neutral equilibrium a state of equilibrium that is independent of a system's displacements from its original position stable equilibrium a system, when displaced, experiences a net force or torque in a direction opposite to the direction of the displacement unstable equilibrium a system, when displaced, experiences a …
What happens to the acceleration of A cart as it moves up and down an inclined plane?
This is the acceleration that slows the cart while it is going uphill. From Newton's Second Law of Motion: Fnet = ma = (Fg + Ffr) = m aup . As the cart moves downhill (above right), the component of gravity pulls it down while the friction force pulls uphill, working against its motion, resulting in adn.
How do you find the acceleration of an object rolling down an incline?
4:427:28Rolling Acceleration Down an Incline – YouTubeYouTube
What happens to its potential energy when an object is taken to high altitude?
Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.
What do you observe in the kinetic and potential energy of a ball at the top of the building?
A boy is holding a ball on top of a building of height. At this point, the ball possess gravitational potential energy and no kinetic energy as it is stationary. He drops the ball down the building. During the duration of the fall, the ball's gravitational potential energy is converted to kinetic energy.
Why would a rolling object take longer than a sliding object to reach the bottom of the ramp?
The friction here is static not kinetic, so it does no mechanical work. Since the sliding object has no angular velocity, its linear velocity is greater than that of the rolling object, and it reaches the bottom of the track faster.
Which rolls down an incline with the greatest acceleration?
Which objects roll down an incline with the greatest acceleration? Any solid cylinder will roll down an incline with greater acceleration than any hollow cylinder if the… When a gymnast moves from an extended position to a tucked position, she…
Which will have the greater acceleration rolling down an incline a large ball or a small ball?
Which will have the greater acceleration rolling down an incline – a large ball or a small ball? They would have the same acceleration.
Where is the center of gravity of a softball bat located?
Where is the center of gravity of a softball bat located? In the more massive end of the bat.
Why is the center of gravity for a baseball bat not in the middle?
The CG of a baseball bat is not at its midpoint because the bat's weight distribution is not symmetrical. Since there is less weight at the handle end, the center of gravity of the bat is farther from the handle than the heavier end.
How do you find the center of mass of a bat?
0:3010:24Center of Mass for Rod (bat) of nonuniform density – YouTubeYouTube
What is the center of gravity?
centre of gravity, in physics, an imaginary point in a body of matter where, for convenience in certain calculations, the total weight of the body may be thought to be concentrated.
Which affects the centre of gravity of the object?
Mass affects the centre of gravity of the object.
What is the Centre of gravity in a stable equilibrium?
When an object is in stable equilibrium, tilting it will raise the height of its center of gravity. An object in unstable equilibrium will have its center of gravity lower in height when tilted. Finally, the center of gravity will remain at the same height when pushed for objects in neutral equilibrium.
How do you find stable and unstable equilibrium?
Stability theorem
- if f′(x∗)<0, the equilibrium x(t)=x∗ is stable, and.
- if f′(x∗)>0, the equilibrium x(t)=x∗ is unstable.
Does the acceleration of a cart rolling down a frictionless incline depend on the mass of the cart?
Sliding Down an Incline: What happens is that, again, mass cancels out of Newton's Second Law, and the result is the prediction that all objects, regardless of mass or size, will slide down a frictionless incline at the same rate.
What happens when an object is moved against gravity such as rolling a toy car up a ramp?
What happens when an object is moved against gravity, such as rolling a toy car up a ramp? Potential energy decreases as it is transformed into kinetic energy.
Which of the following is true about acceleration due to gravity?
Acceleration due to gravity acts on every object which is moving towards or away from earth and its average value is same for every object. It does not depend on the mass of the object.
Can a round object released from rest at the top of a frictionless incline undergo rolling motion?
Can a round object released from rest at the top of a frictionless incline undergo rolling motion? No, the static friction force is zero.
What happens to the gravitational potential energy of an object is lifted to a higher place?
Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.