Search results
People also ask
What is the formula of momentum in physics?
What is the definition of momentum in physics?
How to find momentum formula?
How do you calculate total momentum?
Momentum = mass • velocity. In physics, the symbol for the quantity momentum is the lower case p. Thus, the above equation can be rewritten as. p = m • v. where m is the mass and v is the velocity. The equation illustrates that momentum is directly proportional to an object's mass and directly proportional to the object's velocity.
Apr 27, 2024 · momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton’s second law of motion states that the time rate of change of momentum is equal to the force acting on the particle. See Newton’s laws of motion.
- The Editors of Encyclopaedia Britannica
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.
In Newtonian mechanics, momentum (pl.: momenta or momentums; more specifically linear momentum or translational momentum) is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction.
- p, p
- kg⋅m/s
- Yes
- Overview
- Introduction to Momentum
- Frame of Reference
- What else should I know about momentum?
Review your understanding of momentum in this free article aligned to NGSS standards.
Both the mass and velocity of an object impact momentum. As a result, less massive objects can have more momentum than more massive objects (if the less massive object is moving faster), and slower objects can have more momentum than faster objects (if the slower object has more mass). For example, a parked car has less momentum than a flying mosquito and a bicycle moving at 20 mph has less momentum than a freight train moving at 1 mph .
Depending on the situation, we can consider the momentum of individual objects, or we can consider the total momentum of an entire system. The total momentum of a system is the vector sum of all the individual masses that comprise the system. So for a system that consists of two masses, m1 and m2 , with velocities v→1 and v→2 , we can write P→total=p→1+p→1 , where p→1=m1v→1 and p→2=m2v→2 .
Since v→ is a vector, momentum, p→ , is also a vector. As such, the frame of reference impacts how we determine velocity v→ , and thus momentum p→ . For example, the passenger inside a moving car will have a momentum of 0 with respect to the car, but their momentum is non-zero with respect to the ground.
In addition, for the chosen reference frame, the x -direction and the y -direction of the momentum for each object must be considered separately. For example, two objects with the same mass and speed moving in the same direction will have total momentum of 2mv . But if those objects were moving directly towards each other, they would have a total momentum of zero.
•Momenta of zero. If an object is moving, its momentum cannot be zero. However, this is not necessarily true for a system. Since momentum is a vector, the total momentum of a system can be zero if there are multiple masses. For instance, a system of two objects that have the same magnitude of momentum and are moving directly toward one another will have a total momentum of zero.
•Momentum can be represented by p→ or by P→ . You may sometimes see p→ for an individual mass and P→ for a system of masses.
Jul 28, 2023 · Momentum is a fundamental property in physics and is defined as the product of the object’s mass and velocity. It is a vector quantity having both magnitude and direction. A car moving on a road has momentum. A soccer ball gathers momentum when it is kicked. Formula. Since momentum is the product of mass and velocity, it is given by.
Introduction to momentum. 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
