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What is the velocity of a body of mass 2kg having kinetic energy of 100joules?
Wiki User
∙ 9y ago
The body's velocity is 10m/s
Wiki User
∙ 9y ago
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Can a body have kinetic energy without having momentum?
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.
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!
Why is kinetic energy important?
Kinetic energy is the dominant cause of damage in moving accidents. When two cars collide, kinetic energy is the energy that makes them deform, and that damages the occupants. Braking systems have to be able to absorb kinetic energy efficiently and turn it into thermal energy in the brake discs and pads. Without good braking our cars would be much more dangerous. Kinetic energy is the effect that causes problems when the space vehicles have to re-enter the atmosphere, because of the huge amount of heat it creates.
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.
Which of these has the most kinetic energy of a baby stroller semi truck and a car?
Kinetic energy depends on mass AND on speed. For example, if all of these are at rest, they will all have zero kinetic energy.
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.)
What accounts for the aircraft carrier having a greater kinetic energy than the falling nickel?
The aircraft carrier has a greater kinetic energy because it is so much more massive. Kinetic energy = (1/2)mv2, where m is mass and v is velocity.
Can a body have kinetic energy without having momentum?
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.
Can a body have kinetic energy with out having momentum?
No.
How does the kinetic energy of particles vary as a function of temperature?
In physics, the kinetic energy of an object is the energy that it possesses due to its motion.[1] It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body in decelerating from its current speed to a state of rest.http://en.wikipedia.org/wiki/Kinetic_energyThere is no relation to temperature. Temperature is a measure of *RANDOM* motion. A velocity is not random.
Which has the most kinetic energy a 1000 kg car traveling 30 ms or a car traveling 45 ms?
WOW, 5 MILES PER SECOND. I guess that I would have to calculate the miles per hour. To do this, we must multiply 5 miles per second times 3600(the number of seconds in an hour). That is 18000 miles per hour. I like to work in the SI system, so by converting this to meters per second, we get 8.04672E3 meters per second. Kinetic energy is defined as one half mvsquared. The Kinetic Energy is equal to 3.2374E10 Joules.
How are kinetic energy and heat related?
The kinetic energy of an object is the energy which it possesses due to its motion.It is defined as the work needed to accelerate a body of a given mass from rest toits stated velocity. Having gained this energy during its acceleration, the bodymaintains this kinetic energy unless its speed changes. The same amount of workis done by the body in decelerating from its current speed to a state of rest. Heat isused to create this substance
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
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!
A bouncing ball is an example of?
A body having Kinetic energy within it.
