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What are possible reasons for any difference between the work done and kinetic energy?
kinetic is not a potential energy because kinetic energy is made of movement but potential energies are stored but can be used
Which equations are used to calculate work and power?
Just remember 1 or 2 formulae.. Kinetic energy=.5mv^2 potential energy=mgh......(h is very smaller than Radius of earth) Potential energy in spring=.5K(x^2) . Do not forget!! this 1 "net work done by the body=change in kinetic energy" energy conservation should be applied very carefully!
How can the work-kinetic energy theorem explain why the force of sliding friction reduces the kinetic energy of a particle?
Work = change in Kinetic Energy Because friction acts in the opposite direction of the motion of an object, kinetic energy must be decreased in order to maintain the above equation. Friction opposes motion. Friction converts the kinetic energy of a particle into heat and sound.
Is kinetic energy at work when something is thrown?
Kinetic energy is the energy of motion; a thrown object has kinetic energy.
How is energy and work related?
You can think of "work" as the transfer of certain types of energy.
If work done on an object is equal to object's change in kinetic energy this the state of?
the Work-Energy Theorem states the work done is equal to the change in kinetic energy.
What is the work- energy theorem?
The work done by the net force acting on a body results change only in its kinetic energy.The work done by the net force acting on a body results change only in its kinetic energy.
How Work related to potential ang kinetic energy?
Work is the change in kinetic energy and the change in potential energy. W=∆KE W=∆PE
Work-kinetic energy theroem expression?
Work-Energy Theorem.When work is done on a body its kinetic energy changes.Let a constant force F acting on a body of mass m changes its velocity from u to v in a distance d, then work done = F * dchange in kinetic energy = 1/2mv2 - 1/2mu2 = 1/2m(v2 - u2) =1/2m * 2ad =ma * d =F *dTherefore work done = change in kinetic energy, that is F *d = 1/2mv2 - 1/2mu2.
How do you find work given mass initial velocity and final velocity?
We assume you mean the work done in order to change the velocity of the moving mass.Easiest way is to calculate the change in the kinetic energy of the moving mass, and realizethat it's equal to the amount of work either put into the motion of the mass or taken out of it.Initial kinetic energy = 1/2 m Vi2Final kinetic energy = 1/2 m Vf2Change in kinetic energy = 1/2 m ( Vf2 - Vi2)
How much work must be done on a 10-kg bicycle to increase its speed from 5 ms to 10 ms?
3000 J
A energy is?
Energy is the potential to do some work. If there is work done on a system, this work done is stored as potential energy of the system. If the system in motion, it should have kinetic energy. Hence total energy of the system PE+KE
What are possible reasons for any difference between the work done and kinetic energy?
kinetic is not a potential energy because kinetic energy is made of movement but potential energies are stored but can be used
Which equations are used to calculate work and power?
Just remember 1 or 2 formulae.. Kinetic energy=.5mv^2 potential energy=mgh......(h is very smaller than Radius of earth) Potential energy in spring=.5K(x^2) . Do not forget!! this 1 "net work done by the body=change in kinetic energy" energy conservation should be applied very carefully!
A net force of 22 N accelerates a 4-kg mass over a distance of 18 m. What is the work done by this net force What is the increase in kinetic energy of the mass?
Work done by a force (W) = Force (F) x distance (m) W = 22 x 18 = 396 Joules According to the law of conservation of Energy, the total energy of a closed system is constant, but can change from one type to another. Therefore, the work given to the object must be converted into the kinetic energy of the object. So, Increase in Kinetic energy = work done = 396 Joules
The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf?
no, but the POTENTIAL energy may equal the work done to life the book to the shelf
The net work done by all the forces acting on an object is equal to the change in the object's kinetic energy?
That sounded plausible at first, but it's not true. The work you put into the objectis equal to the change in its total energy, but that could be in the form of kinetic,potential, chemical, any other form, or some of it going to each of several forms.
