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How are kinetic energy and momentum differ?

Updated: 8/20/2019
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11y ago

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Momentum is a vector quantity, depending on magnitude and direction, while kinetic energy is a scalar quantity and does not depend on direction.

The formula momentum is p = m•v, and for Kinetic energy, KE = 1/2mv2, where m is mass in kg and v is velocity in m/s. This means that momentum is directly proportional to the velocity, and KE is proportional to the square of the velocity. For example, if you double the velocity, momentum is doubled, and KE is quadrupled.

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Q: How are kinetic energy and momentum differ?
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Related questions

When kinetic energy doubled what happens to momentum?

Momentum increases


What does not have the same units as the others Kinetic Energy Momentum Potential Energy or Work?

momentum


Can a body have kinetic energy with out having momentum?

No.


What does a vehicle's momentum depend on?

Kinetic Energy


What is the energy during momentum?

There is no "energy during momentum". A moving object has both non-zero momentum, and non-zero kinetic energy.


What is the mathematical relationship between momentum and kinetic energy of the body?

Kinetic energy is the sum of all the parts of momentum: p=mv >function for momentum ∫ p=∫ mv.dv >integrate both sides with respect to velocity ∫ p=.5mv²=Ek >results in formula for kinetic energy


How does kinetic energy change when the momentum is doubled?

energy is quadrupled


Why do you need momentum with kinetic energy?

Momentum is the product of mass and velocity. Kinetic Energy is the product of mass and velocity squared. As you can see, since Kinetic Energy is derived from mass and velocity, and Momentum is derived from mass and velocity, you cannot have one without the other.


Which factor provides kinetic energy of an electron?

Kinetic energy is another name for scalar energy. Kinetic energy is provided by the vector energy cmV=cP, the momentum energy. Momentum is a vector and Momentum energy cP is also a vector, a vector energy. This Momentum Energy gives the velocity V and speed v and thus the "kinetic energy". The electron vector energy is cmV=cP and and the scalar energy is vp ! it is clear that te sclar energy vp=mv2 is much smaller than the vector energy cVm. the so-called kinetic energy is vp/2 = 1/2 mv2. kinetic energy is a product of the vector energy cmV, no Velocity , no kinetic energy.


How does the kinetic energy of a body change if its momentum is halved?

Since momentum is proportional to the velocity, half the momentum means half the velocity (and therefore half the speed). And since kinetic energy is proportional to the SQUARE of the speed, half the speed means 1/4 the kinetic energy.


How is kinetic energy and momentum similar?

Answer #1:Kinetic energy is the energy possessed by an object due to its movementor motion. Momentum on the other hand, is the quantity of motion of anobject that is a product of its mass and velocity.====================================Answer #2:Kinetic Energy = 1/2 M V2kg-m2/s2 (Newton-meter = Joule)Momentum = M V kg-m/s (Newton-second)Numerical Difference = (1/2 M V2) - (M V) = (M V) x (1/2V -1) .


Why is radiant energy kinetic energy?

Light is made up of particles (called photons). They have both kinetic energy and momentum.