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Momentum = (mass) x (speed)
Kinetic Energy = 1/2 (mass) x (speed)2
It looks like the only way a body can have zero momentum is to have either zero mass or else
zero speed, and if either of those is zero, then that makes the KE also zero as well, too.
So the answer to the question is apparently: no.
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∙ 13y ago
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Can a body have momentum without having energy?
Any mass can be expressed in terms of energy, according to the famous formula, E=mC^2.Thus, any mass (m), having a momentum will always have some energy associated with it.
If temperature is a measure of the average kinetic energy of something why do planes not get very warm when accelerated to very fast speeds which increase their kinetic energy?
Heat is the average kinetic energy at the molecular level. A planes forward momentum and kinetic energy as a whole does not affect the kinetic energy of the individual particles with respect to each other. So you don't see a temperature change.
What is the difference between kinetic energy and pontential energy?
Kinetic energy is when men want to have sex (kissing and sucking the penis). I am having sex with my girlfriend right now!
When two bodies having same momentum collide what will be the result?
There are two possible results. However, they cannot move in the same direction after the collision.Total initial momentum = p - p = 0where p represent the momentum of each object.From the principle of conservation of momentum;Total initial momentum = Total final momentumThus, Total final momentum = 0There are only two possibilities for this:1. Kinetic energy is conserved. (the collision is perfectly elastic)In this case, they would move away from each other with the same magnitude of initial momentum.2. Kinetic energy is not conserved. (the collision is inelastic)In this case, they would either remain at rest or they will move away from each other with a smaller magnitude of initial momentum each had.Note that if both bodies had moved in the same direction, there would be a net momentum in this direction and momentum would not have been conserved. (Momentum is ALWAYS conserved provided there is no external force acting on the system)
Does the temperature of a liquid change due to evaporation?
Yes, it decreases. This is because the molecules of the liquid which have higher kinetic energy escape from the liquid, leaving the liquid with molecules having lower kinetic energy. The temperature of any substance is proportional to the kinetic energy of its molecules.
Can a body have kinetic energy with out having momentum?
No.
Can somthing have momentum without having energy?
momentum = mass * velocity kinetic energy = 1/2 mass * velocity^2 If an object has non-zero momentum, it has non-zero velocity. It thus has kinetic energy, at least. It most likely has other forms of energy as well (potential, thermal, etc.)
Can potential energy ever be less than kinetic energy?
The answer to both of your questions lies in the different nature of both quantities, momentum and kinetic energy. Momentum is a vector, kinetic energy is a scalar. This means that momentum has a magnitude and a direction, while kinetic energy just has a magnitude. Consider the following system: 2 balls with equal mass are rolling with the same speed to each other. Magnitude of their velocities is the same, but the directions of their velocities are opposed. What can we say about the total momentum of this system of two balls? The total momentum is the sum of the momentum of each ball. Since masses are equal, magnitudes of velocities are equal, but direction of motion is opposed, the total momentum of the system of two balls equals zero. Conclusion: the system has zero momentum. What can we say about the total kinetic energy of this system? Since the kinetic energy does not take into account the direction of the motion, and since both balls are moving, the kinetic energy of the system will be different from zero and equals to the scalar sum of the kinetic energies of both balls. Conclusion: we have a system with zero momentum, but non-zero kinetic energy. Assume now that we lower the magnitude of the velocity of one of the balls, but keep the direction of motion. The result is that we lower the total kinetic energy of the system, since one of the balls has less kinetic energy than before. When we look to the total momentum of the new system, we observe that the system has gained netto momentum. The momentum of the first ball does not longer neutralize the momentum of the second ball, since the magnitudes of both velocities are not longer equal. Conclusion: the second system has less kinetic energy than the first, but has more momentum. If we go back from system 2 to system 1 we have an example of having more kinetic energy, but less momentum. I hope this answers your question Kjell
Can abody have energy without having momentum?
yes. a body can have energy without momentum also. consider a body at a height 'h' m above the ground level , potential energy contained is = mgh but , as the velocity is 0 we can consider that the momentum of the body is 0
Can a body have energy wothout momentum?
A body can't have kinetic energy without also having momentum. But it can have any otherkind of energy ... the ones that don't involve motion. A charged battery, a stretched rubber band,a can of gunpowder in a drawer, a bowling ball on a high shelf, a gallon of water behind HooverDam on a calm day, and a coil of wire carrying an electric current, all have plenty of energy butno momentum.
Can a body have momentum without having energy?
Any mass can be expressed in terms of energy, according to the famous formula, E=mC^2.Thus, any mass (m), having a momentum will always have some energy associated with it.
Why does heavier object have a greater momentum if light and heavy object have the same kinetic energy?
Well, the equation for momentum is mass x velocity. So, p (momentum)= m x v. The equation for kinetic energy is m x v(squared)/2. Let's say that there are two objects. One is 50 kg, and the other is 30 kg. These objects can both have the same kinetic energy, even though one of them has a larger mass. The determining factor in them both having the same kinetic energy, even though one of them has a larger mass is because of different velocities. The 50 kg object has a velocity of 7 meters/second, and the 30 kg object has a velocity of 9.036961141 meters/second. If you do the math, they both have the same kinetic energy (about the same). 50 kg x 7 m/s = 350 kg x m/s. 30 kg x 9.036961141 = 271.1088342. There is an inverse relation between the momentum of an object and its mass. The mass is the factor that influences momentum more than the velocity; that is why an object with a greater mass will have a greater momentum than the one with a lesser mass, only if they both have the same kinetic energy.
Can something have kinetic energy without having potential energy?
Sure. Picture a squash ball rolling across a basketball court.
If temperature is a measure of the average kinetic energy of something why do planes not get very warm when accelerated to very fast speeds which increase their kinetic energy?
Heat is the average kinetic energy at the molecular level. A planes forward momentum and kinetic energy as a whole does not affect the kinetic energy of the individual particles with respect to each other. So you don't see a temperature change.
When a person having no kinetic energy?
When they have no speed therefore no motion.
How do pontential energy and kinectic energy compare?
object having height possess potential energy.Object having motion possess kinetic energy.
What is the difference between kinetic energy and pontential energy?
Kinetic energy is when men want to have sex (kissing and sucking the penis). I am having sex with my girlfriend right now!
