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Explains linear momentum using pictures and photo illustrations. Introductory text uses simplified examples for beginning physics students.
- Newton's Laws
Introductory text is used for students of basic physics....
- Introduction
An introduction to basic physics (linear motion) using...
- Newton's Laws
Momentum is a measurement of mass in motion: how much mass is in how much motion. It is usually given the symbol p . By definition, p = m ⋅ v. Where m is the mass and v is the velocity. The standard units for momentum are kg ⋅ m / s , and momentum is always a vector quantity.
- I as well am not really understanding what impulse is exactly.so.... if you want to change the momentum of an object, you have to apply a force. OK?? But if you apply that force for a long time then the moment...
- the problem in the paragraph momentum in space , i dont think the acceleration should be 9.8 ms^-2 c...The first part of the question requires us to find out how much impulse the astronaut is *capable* of applying which depends on how strong she is....
- So from what I understand, Impulse is change in momentum but it is a bit different. For instance Acc...Yes! That's entirely correct. Impulse is a certain amount of force you apply for a certain amount of time to cause a change in momentum. That is wh...
- what is the difference between force and thrust?They are different things thrust is a type of force but they do share the same units this is because force is a general term whil thrust is a subse...
- Hi, what are some of the most important everyday uses of momentum? I mean how can I benefit from my ...I think airbag is one of of it . Force and time is inversely proportional in momentum calculation so if time is increased, force is decreased. The...
- Hello. In the "Impulse of an aircraft", it says that the aircraft "can produce a thrust force of up ...If the force is constant at 250 for 30 s then taking the area under the curve IS multiplying 250 * 30. But if the force is not constant then you ca...
- for that equation in specific impulse, does it mean that the specific impulse equals momentum/weight...The specific impulse equals the change of momentum over the weight of fuel.
All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. The amount of momentum that an object has is dependent upon two variables: how much stuff is moving and how fast the stuff is moving. Momentum depends upon the variables mass and velocity.
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- Impulse
- F = M • A Or F = M • ∆V / T
- Representing A Rebounding Collision
These concepts are merely an outgrowth of Newton's second law as discussed in an earlier unit. Newton's second law (Fnet = m • a) stated that the acceleration of an object is directly proportional to the net force acting upon the object and inversely proportional to the mass of the object. When combined with the definition of acceleration (a = chan...
If both sides of the above equation are multiplied by the quantity t, a new equation results. This equation represents one of two primary principles to be used in the analysis of collisions during this unit. To truly understand the equation, it is important to understand its meaning in words. In words, it could be said that the force times the time...
Now consider a collision of a tennis ball with a wall. Depending on the physical properties of the ball and wall, the speed at which the ball rebounds from the wall upon colliding with it will vary. The diagrams below depict the changes in velocity of the same ball. For each representation (vector diagram, velocity-time graph, and ticker tape patte...
Introduction to momentum. Google Classroom. About. Transcript. Momentum (P) is equal to mass (M) times velocity (v). But there are other ways to think about momentum! Force (F) is equal to the change in momentum (ΔP) over the change in time (Δt). And the change in momentum (ΔP) is also equal to the impulse (J).
- 9 min
- Sal Khan
- I understand that the momentum is the same before and after the collision, but what happened to all ...In an elastic collision (http://en.wikipedia.org/wiki/Elastic_collision) no Energy is lost because the total initial kinetic energy of center of ma...
- why does initial momentum has to be equal to final momentum?If there is no external force acting on a system, there is no change in momentum which in turn means that the initial momentum is equal to the fina...
- When doing momentum problems to obtain the combined velocity, why is it that we do not use the conce...The main reason one cant apply "Work Energy Theorem (Kinetic Energy Conservation, as in this case)" on this problem, because some Kinetic Energy is...
- So do photons also have momentum?Yes. Their momentum (p) equals their energy (E) divided by the speed of light (c): p=E/c You can also express that in terms of the photons wavelent...
- At 5:23, why do we have to calculate the COMBINED MOMENTUM before the collision?Momentum is conserved so the total momentum before the collision is the same as after the collision so it can give you information about what the e...
- Is momentum a type of energy?Momentum directly results in kinetic energy, but momentum itself is not energy. p = mv KE = 1/2mv^2 = p^2/(2m)
- Sal talks about 7:07 into the video that since momentum is conserved, the speed must be adjusted to ...Let's say (to make it easy) that the colliding objects have equal mass and equal speed. Note that equal speed does not mean equal velocity - the ob...
- If momentum and impulse are the same, why would they separated? Or I missed out some important facts...momentum is simply mass multiplied by its velocity... impluse is the rate of change in momentum of a body..where the time taken is very small
Momentum physics. Momentum Physics Pictures, Images and Stock Photos. View momentum physics videos. Browse 25,100+ momentum physics stock photos and images available, or start a new search to explore more stock photos and images. Sort by: Most popular. Balancing balls Newton's cradle.
Introduction to momentum. Google Classroom. Review your understanding of momentum in this free article aligned to NGSS standards. Key terms. Equations. Introduction to Momentum. Both the mass and velocity of an object impact momentum.
