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it takes less energy to maintain momentum than to acheive it.
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What is physical significance of linear momentum?
The same as momentum - sometimes called "linear momentum" to distinguish it from angular momentum. Linear momentum is the product of mass times velocity. It is a conserved quantity, making it very useful for certain calculations.
When two object is move in opposite direction one will have positive and other have negative momentum why?
Momentum is defined as a vector quantity; this means that the direction matters. Only if it is defined as a vector quantity do you have something called "conservation of momentum", which makes it very interesting for physics.
Do all objects have a momentum?
No. An object has momentum only if it is in motion..There are two kinds of momentum: linear momentum(or translational momentum), and angular momentum (or rotational momentum)..Linear momentum is a vector quantity and is calculated as mass x velocity (p = mv). Therefore, if an object's velocity is zero, then it has no linear momentum, but if an object is in motion, then it does have linear momentum..VERY IMPORTANT NOTE: Velocity, and therefore linear momentum, is always relative to the frame of reference. For a more complete discussion about velocity, see the related answer, referenced below, entitled 'How to Find Velocity'..Angular momentum is a pseudovector quantity that describes the momentum of an object that is spinning or rotating in place. An object has angular momentum only when it is spinning, or rotating about an axis. When an object is not spinning or rotating, then it does not have angular momentum..It is possible for an object to have only linear momentum, only angular momentum, or both angular and linear momentum. Note that this discussion falls apart in quantum mechanics, so we are only discussing classical physics - that is, every day observable objects, and not light particles (photons), electrons, or other quantum particles..All objects do have inertia, which is a resistance to a change in its momentum.
How is speed related to momentum?
Very, very basically, momentum is a combination of speed and mass of the object.
Can an elephant have the same momentum has a golf ball?
Momentum, in classical terms, is defined as mass x velocity. So, theoretically, an elephant could have the same momentum as a golf ball if the golf ball (small mass) is moving very, very fast, and the elephant (large mass) is moving very, very slowly. If the product of the mass x velocity is the same, then the momentum can be the same.
Explain why the stress is considered as a tensor quantity?
If the surface area is very very small then stress is a Tensor quantity.... -MOGRE
What is physical significance of linear momentum?
The same as momentum - sometimes called "linear momentum" to distinguish it from angular momentum. Linear momentum is the product of mass times velocity. It is a conserved quantity, making it very useful for certain calculations.
When two object is move in opposite direction one will have positive and other have negative momentum why?
Momentum is defined as a vector quantity; this means that the direction matters. Only if it is defined as a vector quantity do you have something called "conservation of momentum", which makes it very interesting for physics.
Do all objects have a momentum?
No. An object has momentum only if it is in motion..There are two kinds of momentum: linear momentum(or translational momentum), and angular momentum (or rotational momentum)..Linear momentum is a vector quantity and is calculated as mass x velocity (p = mv). Therefore, if an object's velocity is zero, then it has no linear momentum, but if an object is in motion, then it does have linear momentum..VERY IMPORTANT NOTE: Velocity, and therefore linear momentum, is always relative to the frame of reference. For a more complete discussion about velocity, see the related answer, referenced below, entitled 'How to Find Velocity'..Angular momentum is a pseudovector quantity that describes the momentum of an object that is spinning or rotating in place. An object has angular momentum only when it is spinning, or rotating about an axis. When an object is not spinning or rotating, then it does not have angular momentum..It is possible for an object to have only linear momentum, only angular momentum, or both angular and linear momentum. Note that this discussion falls apart in quantum mechanics, so we are only discussing classical physics - that is, every day observable objects, and not light particles (photons), electrons, or other quantum particles..All objects do have inertia, which is a resistance to a change in its momentum.
Is Rural Tourism a new alternative of tourism category?
It is an alterantive in relation price-quality. In Spain is very important. It contribute to the PIB in a very important quantity.
How is speed related to momentum?
Very, very basically, momentum is a combination of speed and mass of the object.
What was considered as important as religion?
The ancient Greeks believed that religion was very important. The arts were very important to them as well. Music and architecture was very important to them as well. For them, all of these were extremely important, and each one was thought to be equally important and necessary.
Why is Garnet considered important in the study of rocks?
Garnet is considered important in the study of rocks because of its molecular composure. Garnet has a very weak molecular composure, making it a very maleable rock.
Can an elephant have the same momentum has a golf ball?
Momentum, in classical terms, is defined as mass x velocity. So, theoretically, an elephant could have the same momentum as a golf ball if the golf ball (small mass) is moving very, very fast, and the elephant (large mass) is moving very, very slowly. If the product of the mass x velocity is the same, then the momentum can be the same.
Why does a slow-moving loaded truck and a speeding rifle bullet each have a large momentum?
Momentum is the product of velocity and mass.
Speed plus direction is what?
Speed is a measure of how fast an object is going. This is a scalar quantity, which means it only gives magnitude (size) information. Velocity is a vector quantity, which is very similar to speed, but it also includes direction information.Example:Speed of car = 60 km/hVelocity of car = 60 km/h in a Northwesterly direction
How important is it for researchers to be honest when they publish their results?
It is very important if they want their findings to be considered credible in the future.
