Well, in the Newtonian viewpoint, momentum is the quantity which is conserved in inertial frames; you could call this somewhat tautological, since inertial frames are the ones in which momentum is conserved. Nevertheless, it's a pretty profound concept that, having been given a name, "the thi...
a. FALSE - Impulse is NOT a force. Impulse is a quantity which depends upon both force and time to change the momentum of an object. Impulse is a force acting over time. b. TRUE - Impulse is a vector quantity Like momentum, impulse is not fully described unless a direction is associat...
Here the conserved quantity is momentum. Like energy, which was discussed in , momentum is a composite of fundamental quantities, in this case, mass and velocity. In this chapter we will define momentum and develop the conservation principle associated with it. We will specify the conditions ...
Equation (6-19) may be interpreted mathematically: If the derivative of a quantity is zero, that quantity is a constant. Physically, Equation (6-19) says the time rate at which the momentum P is changing is equal to zero; therefore, P is not changing. This, then, is the principle of...
Momentum is an important quantity because it is conserved. Yet it was not conserved in the examples in Impulse and Linear Momentum and Force, where large changes in momentum were produced by forces acting on the system of interest. Under what circumstances is momentum conserved?
Momentum is a physical quantity possessed by a body due to its mass and motion. It is defined as the product of the mass of the body's mass and velocity. I SI systems, it is measured in kg⋅m/s.Answer and Explanation: The equation of the momentum of a moving body is given by ...
Momentumisdirectlyproportionaltobothmassandspeed. Somethingbigandslowcouldhavethesamemomentumas somethingsmallandfast. MomentumExamples 10kg 3m/s 10kg 30kg·m/s Note:Themomentumvectordoesnothavetobedrawn10timeslongerthanthevelocityvector,sinceonlyvectorsofthesamequantitycanbecomparedinthisway. 5g 9km/s p=45...
As a plane lands, it’smomentumis transferred to the air around it, a baking cake has heat transferred to it by oven, sweetened tea contains sugar that has dissolved, which is mass transfer 当飞机着陆时,它的动量传递给它周围的空气,烘烤的糕点由烤炉把热量传给它;加糖的茶里糖已经溶化,这就是...
In such cases, we may treat the angular momentum of a particle or a body as a signed (+ or –) scalar quantity. Then the angular momentum L is positive when ω, the angular velocity, is positive and negative when ω is negative. In those cases for which the rotational motion of a ...
Why is momentum a vector quantity? Because it depends on the velocity of the object, which includes direction as well as magnitude. 5 Why does a heavier object have more inertia? A heavier object has more mass, and since inertia is proportional to mass, it has greater resistance to changes...