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No. If the momentum of a pair of objects is zero sitll they can have kinetic energy.For example, in the case of bullet and gun, before firing the bullet the total momentum is zero and according to the law of conservation of momentum, the total momentum after firing the bullet will also be zero. But still they both will have kinetic energy.
Not necessarily. An object can have zero momentum (if it is stationary) but still have potential energy if it is at a height or in a position where potential energy is stored, like a compressed spring or raised object. Momentum and potential energy are separate concepts and do not have a direct correlation in this context.
momentum = mass times velocity
potential energy (in the gravitational sense), at the earth's surface is mass*g*h
where g=grav constant; h=height of object. The two equations don't share common values, apart from mass, which indicates that, whilst zero mass would mean zero momentum and zero potential energy, the other values, such as velocity, height are independent.
So this is not true. Potential energy is the energy in a system that does not involve motion, normally. It is normally energy that has the potential to create motion though, by moving a massive object through a distance by producing a force, where the force is equal to the change in potential per unit length in the direction that the force acts. If you lift a brick up some stairs, you will be increasing its potential energy, but when you get to the top and stop moving, it will still have the potential energy you gave it, but since you have stopped moving it, it will now have no kinetic energy. Kinetic energy is half m v squared, or the momentum squared over two times the mass.
Indeed, in simple harmonic motion, a pendulum swinging back and forwards, when that pendulum reaches max displacement from the centre of equilibrium (the centre of the swing point), it will have no kinetic energy, and therefore no momentum, but the potential energy will be at a maximum.
If Kinetic energy (KE)=0 then its velocity must be zero since KE=0.5mv^2
Therefore momentum (mv) must be zero.
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Can potential energy ever be less than kinetic energy?
No, potential energy is always higher than kinetic energy because potential energy represents stored energy due to an object's position or configuration, while kinetic energy represents the energy of motion. When potential energy is converted to kinetic energy, it can never result in the kinetic energy being greater than the original potential energy.
How does kinetic energy and potential energy switch?
work=change in kinetic energy, doing work on an object by moving it up increases that object's potential energy because it has the POTENTIAL to fall due to gravity. kinetic energy is lost in the movement of the object. However, throughout an entire closed system, the total energy in joules (or kinetic enery plus potential energy) does remain constant. this is useful because the initial energy and the final energy most be equal, and if thats true, then initial kinetic energy plus initial potential energy must equal final kinetic energy plus final potential energy. does that help?
Why is the potential energy converted into kinetic energy?
Potential energy is converted into kinetic energy when an object moves from a higher position to a lower position due to the change in the gravitational forces acting on the object. As the object moves downward, it gains speed and its potential energy decreases while its kinetic energy increases. This conversion follows the law of conservation of energy, where energy is neither created nor destroyed but only changes form.
How does increasing the amount of stored energy affect the amount of kinetic energy when an object is released?
Increasing the amount of stored energy in an object will generally increase the potential for kinetic energy when the object is released. This can result in the object moving faster or having greater kinetic energy when the stored energy is converted into motion.
Why is a neutrino released during positron emission?
In positron emission, a proton in the nucleus is converted into a neutron, releasing a positron and a neutrino. The neutrino is released to conserve lepton number and to carry away the energy and momentum that must be conserved in the decay process.
An object that has linear momentum must also have?
Momentum. The formula for kinetic energy is: KE = .5 * m *v^2 The formula for momentum is: p = m * v If an object has kinetic energy, then both mass and velocity are non-zero, which implies that the momentum is also non-zero.
A moving object must have potential energy?
An object that has kinetic energy must have momentum, velocity, and speed. Momentum is mass times velocity. Kinetic energy is mass times velocity squared. Speed is distance divided by time. Kinetic energy is the energy of the object's motion. An object that has kinetic energy must have momentum because is the force or speed of movement. For example the ball gained momentum as it rolled down the hill. An object that has kinetic energy must have momentum, velocity, and speed because if an object is in motion (has kinetic energy) it must be either gaining, losing, or at a constant momentum, it must have a velocity (basically speed) and speed because when an object is in motion, it MUST have a certain velocity or speed.
Can a body have momentum without having energy?
No, momentum and energy are closely related in physics. Momentum is the product of an object's mass and velocity, while energy is the ability to do work. Therefore, if an object has momentum, it must also have kinetic energy.
Can you have kinetic energy without momentum?
No, momentum is a fundamental property that an object must possess in order to have kinetic energy. Kinetic energy is directly related to an object's mass and velocity, both of which contribute to its momentum.
If an object has kinetic energy then it also must have?
Mass.
If an object has kinetic energy then it must also have potential energy?
Not necessarily. An object can have kinetic energy without having potential energy. For example, a moving car has kinetic energy but may not have any stored potential energy depending on its position.
What must be known in order to calculate the potential energy of an object?
To calculate the potential energy of an object, you need to know the object's mass, the acceleration due to gravity, and the height at which the object is located. The formula for potential energy is PE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object.
How does an object with higher momentum move?
Momentum is the product of velocity and mass - so to have a "higher momentum", the object must either be more massive, or it must move faster.
To have momentum an object must be?
Momentum = m v (mass, velocity). If either one is zero, momentum is zero. So in order to have momentum, an object must have both mass and speed, in the frame of reference.
If an object's mechanical energy is equal to its potential energy how much kinetic energy does it have?
Mechanical Energy= Potential energy+ Kinetic energy, so for the mechanical energy to be equal to be potential energy, the kinetic energy must be 0.
Which factors must be know to calculate an object gravitational potential energy?
Mass speed
What factors must be known to calculate an object gravitational potential energy?
its mass and height
