Explanation: Momentum is a set of vectors, which is given by the product of the object’s mass and velocity. When the speed of the object is negative, eg. H. the object moves in the direction chosen as the negative direction, the impulse is also negative.
Moment is a vector. This means that momentum is a quantity with one size (or magnitude) and one direction. The above problem is a one-dimensional problem, so the object moves along a straight line. In such situations, momentum is usually referred to as right positive and left negative.
Moment is a collection of vectors, which means it has both breadth and direction. So any negative pulse means that an object is moving in the opposite direction that you called a positive direction.
Yes, the momentum is a set of vectors and therefore the momentum variations have a certain direction, in fact a momentum variation of a particle is a momentum → I≈ → F t, it has the same direction of the average force acting on the particle. In this case it is actually negative because the wall repels the particle.
A negative result means that the objects will move in the original direction of the other object after the collision.
Momentum is a set of vectors resulting from the product of the mass and velocity of an object. When the speed of the object is negative, eg. H. the object moves in the direction chosen as the negative direction, the impulse is also negative.
Note that if p = mv and m are constant, then F = dp / dt = m * dv / dt = ma. On the other hand, it can also be said that the change in momentum is equal to the force multiplied by the useful life (or the integral of the force over time, if the force is not constant over time).
Conceptual moment: Two factors that influence the moment are the mass and the velocity of the object. A low-speed, low-mass object has minimal momentum as it requires little force and / or time to stop.
For example, a bowling ball (large mass) that moves very slowly (low speed) can have the same speed as a quickly thrown baseball (low mass) (high speed). A ball is another example where momentum is very, very high due to its extraordinary speed.
Negative earth. In theoretical physics, negative mass is matter, whose mass is opposite to the mass of normal matter, for example kg1kg. The general theory of relativity describes gravitation and the laws of motion for particles of positive and negative energy, that is, negative mass, but does not contain other basic forces.
It can be negative. it means that the force is going in the opposite direction. A negative force is a force that acts in the opposite direction to the direction you decide to be positive (usually it’s up + ve, down is ve). If the object accelerates, the situation is different.
The impulse is a moving mass and only applies to moving objects. It is a term that describes a relationship between the mass and the velocity of an object, and we can see it when written as the equation p = mv, where p is the momentum, m is the mass in kg and v is the velocity im / s.
The momentum exerted on an object creates an equivalent vector variation in its amount of linear motion, even in the same direction. The SI unit of momentum is Newton second (N⋅s) and the coupling unit equivalent to size is kilogram meter per second (kg⋅m / s).
Collisions. In the event of a collision between two isolated objects, Newton’s third law means that the momentum is always maintained. In the event of a collision between two isolated objects, the impulse is always maintained. The kinetic energy is retained only in the event of elastic collisions.
The moment-momentum theorem allows to establish a direct relationship between the temporal effect of a force on an object and the movement of the object. One of the reasons that impulses are important and useful is that forces are often not constant in the real world.