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If the velocity is constant does that mean that there is no impulse?
Not necessarily. Impulse Fdt=change in momentum which could be written as mdv (constant mass, velocity changing) or dmv (changing mass, constant velocity - the so-called conveyor belt problem. Imagine a hopper filled with (say) coal is feeding the coal on to a conveyor belt. The mass of the belt increases with time, so a force has to be applied to it to keep it moving at constant velocity.
Is the momentum of an object moving in a circular path constant?
No, the momentum of an object moving in a circular path is not constant. The direction of the velocity of the object changes constantly, leading to changes in its momentum.
As a moving object's velocity decreases does its momentum decreases?
Yes, if a moving object's velocity decreases, its momentum will also decrease as momentum is directly proportional to velocity. Momentum is calculated as mass multiplied by velocity, so any change in velocity will result in a change in momentum in the same direction.
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.
Does an object moving at a constant speed have momentum?
Yes, an object moving at a constant speed does have momentum. Momentum is the product of an object's mass and velocity, so as long as the speed is constant, the momentum of the object will also remain constant.
If the velocity is constant does that mean that there is no impulse?
Not necessarily. Impulse Fdt=change in momentum which could be written as mdv (constant mass, velocity changing) or dmv (changing mass, constant velocity - the so-called conveyor belt problem. Imagine a hopper filled with (say) coal is feeding the coal on to a conveyor belt. The mass of the belt increases with time, so a force has to be applied to it to keep it moving at constant velocity.
Is the momentum of an object moving in a circular path constant?
No, the momentum of an object moving in a circular path is not constant. The direction of the velocity of the object changes constantly, leading to changes in its momentum.
As a moving object's velocity decreases does its momentum decreases?
Yes, if a moving object's velocity decreases, its momentum will also decrease as momentum is directly proportional to velocity. Momentum is calculated as mass multiplied by velocity, so any change in velocity will result in a change in momentum in the same direction.
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.
Does an object moving at a constant speed have momentum?
Yes, an object moving at a constant speed does have momentum. Momentum is the product of an object's mass and velocity, so as long as the speed is constant, the momentum of the object will also remain constant.
As a moving object's velocity decreases its momentum decreases. Please select the best answer from the choices provided T F?
False. Momentum is the product of an object's mass and velocity, so if the velocity decreases, the momentum will decrease only if the mass remains constant. If the mass changes, then the momentum will change accordingly.
What can be inferred about the velocity of a car that is moving with a constant momentum?
The velocity of the car is staying constant speed the whole time. It is not rising or diminishing at all.
Does a body moving with uniform acceleration have momentum?
Yes, a body moving with uniform acceleration has momentum. Momentum is the product of an object's mass and its velocity, and acceleration is the rate of change of velocity. As long as the object is moving and has mass, it will have momentum.
As a moving object's velocity decreases its momentum decreases?
False. The momentum of an object is the product of its mass and velocity, so if the velocity decreases while the mass remains constant, the momentum of the object will decrease.
If an object is moving at a constant velocity what do you know about its acceleration?
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
What property that a moving object has due to its mass and velocity?
The property that a moving object has due to its mass and velocity is momentum. Momentum is calculated as the product of mass and velocity, and it represents how difficult it is to stop a moving object.
What is the function of the mass and velocity of moving object?
Momentum
