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A car with a mass of 1400 kg is moving on ice with a constant velocity of 18.0 meters per second what is the cars momentum?
Wiki User
∙ 14y ago
Momentum = (mass) x (speed)
But if mass is in kg, then speed should be in meters per second, otherwise we'll get
a very strange unit for our momentum (kg-mile-sec-1).
1 mile = 1,609.344 meters
18 miles = 28,968.2 meters
Momentum = (1,400) x (28,968.2) = 40,555,468.8 kg-meter per second
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Doing a double-take on the question ... there's got to be a mistake there somewhere.
The car is going " ... 18 miles per second ... ". That's roughly equivalent to the earth's mean
orbital velocity around the sun, and equal to 64,800 miles per hour.
18 miles per hour, or 18 meters per second, would be a lot more reasonable.
But we're only here to answer the question as posted, whether it makes sense or not.
Wiki User
∙ 14y ago
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What is the momentum of a 30 kg cart moving with a speed of 10 meters per second?
The momentum is given by the formula... p=mv p=momentum m=mass v=velocity In your question your mass is 30kg and your velocity is 10m/s just do simple math and your momentum is 300kg*m/s
What is the acceleration of a car that moves at a constant velocity of 20 meters per second?
-- "Acceleration" is any change of velocity.-- "Velocity" is a speed and its direction.-- "20 meters per second" is a speed, not a velocity, because it doesn't mention a direction.-- We don't have enough information to say anything about that car's acceleration.If, for example, it happens to be moving at a constant speed of 20 meters per secondon a circular track, then it has plenty of acceleration.
What would the acceleration of a turtle that is moving with a constant velocity of 0.25 miles per second to the right?
The acceleration would be zero because the turtle is moving at a constant speed
A car moving with an initial velocity of 30 meters per second slows down at a constant rate of 3 meters per second?
1 meter/second/second in the same direction of travel
If a ferris wheel is rotating at constant speed is it moving at a constant velocity?
No. Velocity combines speed and the direction of motion.Constant velocity is constant speed in a straight line.In circular motion, the velocity is always changing even if the speed is constant,because the direction is always changing.
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.
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.
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.
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.
Why does velocity stay constant with decreasing momentum?
Velocity remains constant when momentum decreases because momentum is the product of mass and velocity. As long as mass remains constant, a decrease in momentum can be offset by a corresponding increase in velocity, keeping the overall product constant. This relationship is described by the principle of conservation of momentum.
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.
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.
Determine if the momentum of an object moving in a circular path at constant speed is constant?
No, the momentum of an object moving in a circular path at constant speed is not constant. This is because momentum is a vector quantity that depends on both the magnitude and direction of velocity. As the object moves in a circular path, the direction of its velocity is constantly changing, which means the momentum is also changing.
What is the magnitude of the velocity of a 25-kilogram mass that is moving with a momentum of 100 kilogram-meters per second?
-75
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.
If an object is moving at a constant velocity and you want to change it's momentum you would change it's?
The answer is velocity.
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.
