0
How do you apply the concept of momentum to compare the mass and velocity of a slow moving train and of a high-speed bullet?
Wiki User
∙ 12y ago
The slow moving train has a much higher mass than the high-speed bullet, but the bullet has a faster velocity than the slow moving train so their momentum is the same.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is mommentum in science?
Momentum is a concept in physics that combines both the mass and velocity of an object. Basically it is the velocity of an object multiplied by its mass. Even though it relates very simply to the mass and velocity of an object it is still commonly used because it simplifies a great number of equations. Also some descriptions of reality are more convenient when using the mass and momentum rather than mass and velocity. This is especially true in particle physics where the simple relation illustrated above does not quite hold (a new factor is required, called the gamma factor) because the speeds approach those of light, and a momentum based model is more easy to work with.
A rocket moves through outer space with a constant velocity of 9.8 ms What net force acts on it?
In the outer space there is no matter to get the reaction force (so newton's third law fails for rocket propulsion ) but here comes the concept of "fluid momentum transfer" that is when ever fluid moves at certain velocity it tries to move in straight path and this fluid transfers its momentum when there is sudden change in its direction. well to understand this phenomenon i can quote you a simple daily life example "water sprinkler works on same concept"
Is velocity matter?
No, velocity is a mathematical concept (change in position per unit time).
Who invented law of conservation of momentum?
Isaac Newton originated the concept of conservation of momentum. I would not describe this as an invention, so much as an observation about nature.
How do you caculate the momentum of an object?
The momentum of an object can be calculated by the formula mv=momentum where m is the mass and v is the velocity.Here is another formula that may be of some help (it is the formula for the impulse-momentum relationship):Ft=(delta)(mv)F stands for the impact force and t stands for the impact time. Ft together equals the impulse. m stands for the mass and v stands for the velocity. (delta)(mv) together equals the change in the momentum.
How does increase in mass affect the time taken?
Oh, it's tricky. But if you are in Physics 30 + it should be easy. First, the concept of Momentum and impulse is in here. So, first conservation of momentum law guarantees that the momentum before Math added is equal to the momentum after the mass added. Suppose the momentum is A. M : = Momentum = mv. v = M/m so velocity changes. So, if it's slower, does it takes longer or shorter time to travel the same distance? What about when velocity is faster. Remark: as m, mass, increases, the velocity decreases.
What quantities are needed to calculate angular momentum?
"Rate of change" means that you divide something by time ("per unit time" or "per second"), so you would use the units of angular momentum, divided by seconds.I am not aware of any special name for this concept.
What is mommentum in science?
Momentum is a concept in physics that combines both the mass and velocity of an object. Basically it is the velocity of an object multiplied by its mass. Even though it relates very simply to the mass and velocity of an object it is still commonly used because it simplifies a great number of equations. Also some descriptions of reality are more convenient when using the mass and momentum rather than mass and velocity. This is especially true in particle physics where the simple relation illustrated above does not quite hold (a new factor is required, called the gamma factor) because the speeds approach those of light, and a momentum based model is more easy to work with.
Can anybody have momentum without energy?
No, if you are dealing with kinetic energy. momentum is the relationship between mass and velocity... equation is p=mv p = momentum m = mass v = velocity energy is the relationship of one half of the mass and velocity squared... equation is ke = .5mv2 ke = kinetic energy m = mass v = velocity If the equations don't make sense then thing about it logically. Momentum is the concept of an object moving with a certain speed that has a certain mass. Kinetic energy also consists of things moving that have a certain mass and velocity. Kinetic energy is just a different thing so it is calculated different. Potential energy is the other type of energy. This is the energy of an object that is NOT moving. So if dealing with potential energy the energy is not in motion and therefore does not have momentum.
A rocket moves through outer space with a constant velocity of 9.8 ms What net force acts on it?
In the outer space there is no matter to get the reaction force (so newton's third law fails for rocket propulsion ) but here comes the concept of "fluid momentum transfer" that is when ever fluid moves at certain velocity it tries to move in straight path and this fluid transfers its momentum when there is sudden change in its direction. well to understand this phenomenon i can quote you a simple daily life example "water sprinkler works on same concept"
Why does the concept of Bohr orbits violate the uncertainty principle?
The Bohr Model of a single-electron atom assumes that the energy levels of electron orbits are fixed due to the quantization of angular momentum of the electron while in orbit. The problem occurs because angular momentum depends on both the radius of the orbit and the velocity of the electron in that orbit. If one or the other is uncertain, then it is impossible to know the angular momentum. Heisenberg showed that either one or the other MUST be uncertain. If we are certain about the radius, we MUST have uncertainty about the velocity -- and vice-versa. Thus, angular momentum of an orbting electron can NOT be quantized, because it can not be known.
Is velocity matter?
No, velocity is a mathematical concept (change in position per unit time).
Why is it easier to successfully tackle a 70 kg man than a sumo wrestler?
Providing velocity is constant (say they are both running at 0.5ms-1).The concept of momentum applies in this problem. The sumo wrestler (assume 165kg) will have more momentum despite moving at the same speed.Momentum is given as the formula p = mvWhere p is momentum, m is mass and v is velocity.The momentum of the sumo wrestler is 160 x 0.5 = 80kgms-1The 70kg man has a momentum of:70 x 0.5 = 35kgms-1As you can see, the sumo wrestler has a momentum of 80kgms-1 as opposed to the man with a momentum of 35kgms-1.The person with the more momentum is therefore harder to tackle and more difficult to bring to a stop.
Who invented law of conservation of momentum?
Isaac Newton originated the concept of conservation of momentum. I would not describe this as an invention, so much as an observation about nature.
How do you caculate the momentum of an object?
The momentum of an object can be calculated by the formula mv=momentum where m is the mass and v is the velocity.Here is another formula that may be of some help (it is the formula for the impulse-momentum relationship):Ft=(delta)(mv)F stands for the impact force and t stands for the impact time. Ft together equals the impulse. m stands for the mass and v stands for the velocity. (delta)(mv) together equals the change in the momentum.
What are efficiencies?
efficiency is defined as the concept of mechanical advantage and velocity ratio.
How do you find overall velocity?
There is average velocity, and there is instantaneous velocity. I don't think "overall velocity" is a concept generally used in physics; please clarify what you mean.
