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What is true about the total mechanical energy of a pendulum in the absence of friction?
Wiki User
∙ 10y ago
In that case, the total mechanical energy won't change.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoit remains the same
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What energy occur as a pendulum swings?
There is Mechanical Energy. This Mechanical Energy equals Potential + Kinetic Energies. At the maximum heigh and with the pendulum set still there is the maximum Potential Energy (so Kinetic equals 0, and Potential Energy equals Mechanical Energy). When we release the pendulum this Potential Energy transforms into Kinetic Energy which will be maximum and equal to the Mechanical Energy when the 'rope' or 'string' that holds the pendulum is in the same direction as the acceleration, or force, in this case gravity. Then, and if there is no friction (e.g. air) the pendulum will reach the same maximum heigh that it had in X0 and the Kinetic Energy will transform into Potential, reinitiating the process but in the opposite direction. Hope i helped and sorry for my english. :)
Swinging pendulum comes to rest is it violation of mechanical energy?
Conservation of mechanical energy is only an approximation of reality. There is friction caused by the resistance of air as the pendulum is swinging, gradually reducing its speed, therefore its kinetic energy. As a result, mechanical energy is not conserved. At school, however, in most physics problems, the question or your instructor will most likely tell you to disregard this friction, because its expression only complicates your calculations.
According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?
Conservation of mechanical energy means that the total mechanical energy doesn't increase or decrease over time.Note that in real systems, some mechanical will always be lost due to friction.
When a pendulum swing stops its energy is changed into what?
A pendulum will lose energy in two ways: 1. by friction with the air, 2. by friction in its supporting bearing. Both these energy losses will produce heat.
Why does a pendulum eventually slow down and stop swinging?
The pendulum will lose energy, due to friction.
What energy occur as a pendulum swings?
There is Mechanical Energy. This Mechanical Energy equals Potential + Kinetic Energies. At the maximum heigh and with the pendulum set still there is the maximum Potential Energy (so Kinetic equals 0, and Potential Energy equals Mechanical Energy). When we release the pendulum this Potential Energy transforms into Kinetic Energy which will be maximum and equal to the Mechanical Energy when the 'rope' or 'string' that holds the pendulum is in the same direction as the acceleration, or force, in this case gravity. Then, and if there is no friction (e.g. air) the pendulum will reach the same maximum heigh that it had in X0 and the Kinetic Energy will transform into Potential, reinitiating the process but in the opposite direction. Hope i helped and sorry for my english. :)
Swinging pendulum comes to rest is it violation of mechanical energy?
Conservation of mechanical energy is only an approximation of reality. There is friction caused by the resistance of air as the pendulum is swinging, gradually reducing its speed, therefore its kinetic energy. As a result, mechanical energy is not conserved. At school, however, in most physics problems, the question or your instructor will most likely tell you to disregard this friction, because its expression only complicates your calculations.
According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?
Conservation of mechanical energy means that the total mechanical energy doesn't increase or decrease over time.Note that in real systems, some mechanical will always be lost due to friction.
When a pendulum stops swaying and its at rest has it loss energy?
Yes. Pendulum lose energy due to friction with the air.
When a pendulum swing stops its energy is changed into what?
A pendulum will lose energy in two ways: 1. by friction with the air, 2. by friction in its supporting bearing. Both these energy losses will produce heat.
Why does a pendulum eventually slow down and stop swinging?
The pendulum will lose energy, due to friction.
A pendulum has a kinetic energy of 65 J and a gravitational potential energy of 78 J. What is its mechanical energy?
The mechanical energy is the sum of the two.
Why does the mechanical (total) energy of the skater not change over time?
It certainly does; mechanical energy will be wasted due to friction. Otherwise, if you disregard friction, the fact that the total mechanical energy is conserved follows from conservation of energy.
Mechanical energy is converted into heat energy when?
... friction occurs.
What force opposes mechanical energy?
friction
How can you make a pendulum swing without stopping Is it possible?
Every time the pendulum swings back and forth, some energy is lost to friction. Friction with air, and friction in the supporting string or whatever. If you manage to reduce this friction (for example, reduce air friction by making the pendulum swing in a vacuum), it will swing longer. However, you won't be able to reduce energy losses completely; it may swing longer, but not forever.
Can an objects mechanical energy change?
Yes, it can. For instance, if you have friction in the system mechanical energy of the system is not conserved.
