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Why two objects move in opposite direction one will have positive momentum and other negative momentum?
Quite simply, this means that momentum is a vector quantity; the direction is relevant. This is useful, for example, for calculations involving the conservation of momentum. Actually momentum is the product of velocity and mass, and velocity is also a vector quantity - thus, in this example, one object will have a positive velocity (more precisely: a positive component of the velocity along the x-axis, for example), the other, negative. Multiplying this velocity by the mass will also give a quantity which may be positive or negative (or rather, have positive or negative components).
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.
How does the conservation of linear momentum relate to the conservation of angular momentum in a system?
The conservation of linear momentum and angular momentum are related in a system because they both involve the principle of conservation of momentum. Linear momentum is the product of an object's mass and velocity in a straight line, while angular momentum is the product of an object's moment of inertia and angular velocity around a point. In a closed system where no external forces act, the total linear momentum and angular momentum remain constant. This means that if one form of momentum changes, the other form may change to compensate, maintaining the overall conservation of momentum in the system.
Why does velocity stay constant with decreasing momentum?
As far as we can tell, it doesn't. Momentum is defined as (mass) times (velocity). There appear to be only two ways in which momentum can decrease: either the mass has to magically evaporate, or else the velocity has to decrease. Since mass conservation is a nearly fundamental law of nature, that leaves us with velocity as the only way to change the momentum of a moving body.
Can momentum have a negative velocity?
No, momentum can not have a negative velocity. Velocity is the rate of motion of a body from one position to another position in a particular direction. Bodies traveling in opposite directions may appear to have a negative velocity in relationship to each other but any amount of velocity is positive.
How can one determine the final velocity after a collision?
To determine the final velocity after a collision, you can use the conservation of momentum principle. This principle states that the total momentum before the collision is equal to the total momentum after the collision. By calculating the initial momentum of the objects involved and setting it equal to the final momentum, you can solve for the final velocity.
How can one determine the recoil velocity of an object?
To determine the recoil velocity of an object, you can use the principle of conservation of momentum. This means that the total momentum before an event is equal to the total momentum after the event. By calculating the initial momentum of the object and the momentum of any other objects involved in the event, you can determine the recoil velocity of the object.
What is the recoil velocity of the pistol when a bullet of mass 20g is fired with a velocity 150ms from a pistol of mass 2kg?
The recoil velocity of the pistol can be calculated using the law of conservation of momentum. The initial momentum is 0 (since the system is not moving initially), and the final momentum is the sum of the momenta of the bullet and the pistol together. Therefore, the recoil velocity of the pistol would be 1.5 m/s in the opposite direction to the bullet's velocity.
A 5g bullet is fired from a 500g if the bullet leaves the gun going 800ms with what speed does it recoil?
Using the principle of conservation of momentum, the momentum of the bullet before the gunshot is equal to the momentum of the bullet and gun after the shot. Calculating the recoil velocity using this principle shows that the gun will recoil at 1.6 m/s in the opposite direction.
How do you calculate the new velocity so that momentum remains same?
apply conservation of momentum theory- m1v1=m2v2 where m1 is the initial mass, m2 is the final mass, v1 is the initial velocity and v2 is the final velocity.
What is the related to momentum?
Momentum is a vector quantity that represents the amount of motion an object possesses. It is related to an object's mass and velocity, as momentum equals the product of an object's mass and its velocity. The principle of conservation of momentum states that in a closed system, the total momentum before a collision is equal to the total momentum after the collision.
50 kg astronaut eject 100 g of gas from his propulsion pistol at a velocity of 50 ms what is his resulting velocity?
The momentum of the astronaut before firing the gas is 0 (since he is at rest), while the momentum of the gas is (0.1 kg * 50 m/s) = 5 kgm/s. According to the Law of Conservation of Momentum, the total momentum before and after firing must be equal. Therefore, the astronaut will have a velocity in the opposite direction, calculated as (5 kgm/s) / 50 kg = 0.1 m/s in the direction opposite to the gas.
