0
Zero.
I am currently sitting in my chair in my room. If the plane is my chair and my room is the reference plane as long as I don't move my chair around the room it has no kinetic energy. Now if I expand my reference plane to an observer on the sun (I know) they are going to see me and my chair hauling butt at about 30km/s around the solar system along with my room my house and the rest of the planet this velocity and my mass mean there is kinetic energy. Ek=.5mv^2
What else can I help you with?
What a example of kinetic energy?
A bullet racing by a non moving observer has kinetic energy.
What would the kinetic energy of a rock sitting on the ground be?
Zero. You need to think in terms of "frame of reference" as in what are you comparing the rock to. If you are an observer sitting next to the rock then the kinetic energy of the rock RELATIVE TO YOU is zero - I.E. the rock isn't moving relative to you and thus has no kinetic energy - energy of motion - relative to you. If you are an observer sitting a million miles from earth watching the rock then it is zipping around at 1000 miles per hour as the earth spins on its axis and it has significant kinetic energy RELATIVE TO YOU. You need to think in terms of "frame of reference" as in what are you comparing the rock to. If you are an observer sitting next to the rock then the kinetic energy of the rock RELATIVE TO YOU is zero - i.e. the rock isn't moving relative to you and thus has no kinetic energy - energy of motion - relative to you. If you are an observer sitting a million miles from earth watching the rock then it is zipping around at 1000 miles per hour as the earth spins on its axis and it has significant kinetic energy RELATIVE TO YOU. ---- So we don't get bored, no kinetic and no gravitational potential energy.
What is a example of kinetic?
A bullet racing by a non moving observer has kinetic energy.
Does the work done by the net force acting on a particle depend on the inertial reference frame of the observer.does the change in kinetic energy so dependent if so?
No, the work done by the net force on a particle is independent of the inertial reference frame of the observer. However, the change in kinetic energy is frame-dependent due to the kinetic energy term in the relativistic energy equation.
Does the Kinetic Energy of an object depends on the frame of reference in which its motion is measured?
Work is force X distance travelled. Force is mass x acceleration. Aceeleration depends on the frame of reference from which one is measuring it. Hence work done depend on the frame of reference from which one is measuring it. QED
Is standing kinetic or potential energy?
It is not kinetic energy. Whether or not it is potential energy depends on the frame of reference.
An object that has NO kinetic energy must be?
An object with zero kinetic energy is at rest. However, since reference frames are relative, the calculation of kinetic energy is done with reference to an arbitrary point.
You watch your friend take off in a jet plane and you comment on the kinetic energy she has acquired But she says she has no such increaze in kinetic energy Who is correct?
You are correct. When the jet moved, she moved with it. If she was moving faster than she was before, then she gained kinetic energy. She lost that kinetic energy when the plane touched down and came to a stop.
When does kinetic energy equals zero?
When an object is stationary in a plane, (no hill or slope) then potential energy and kinetic energy are equal. Following the case, if an object is stationary at the top of a hill, it has stored energy (potential energy) due to gravitational attraction, as the force of gravity attracts the object towards the ground and once the object gets some kind of motion, all those potential energy will change to kinetic energy. **************************** Actually, the Object CAN be moving, but it is moving Parallel to its Reference Frame, and at a Constant Velocity.
Is it possible for kinetic energy to have a negative value?
Yes, kinetic energy can have a negative value when an object is moving in the opposite direction of a reference point or when its speed is decreasing.
What happens to speed if kinetic energy halved?
Kinetic energy is determined by mass and velocity. The velocity is halved if you double the original mass, so the kinetic energy stays the same (unless the mass added has the same kinetic energy in the observer's reference frame as the original mass).
Energy can be formally defined as?
Energy can be formally defined as the ability to do work or cause change in a system. It exists in various forms, such as kinetic, potential, thermal, and chemical energy. The total energy in a closed system remains constant according to the law of conservation of energy.
