# science

posted by .

Which of these is the best example of translational motion?
A. a coin spinning on a desk
B. a leaf blowing across the field
C. a car in a parking lot with its engine running
D. a ballerina standing on one foot

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http://encyclopedia2.thefreedictionary.com/Translational+Motion

What do you think?

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i don't know its a review so i just need help

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you must be able to see that

spinning is not translation
standing cars and ballerinas aren't moving.

Put a little thought into it!

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its ok dear leaf no worries

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my teacher said to guess if we didn't know because we would do a through review tomarow but i figured i could get some help
Thanks DEBBIE

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how easy is that. A

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I just wish that people could post a helpful answer, Translational motion is movement of an object without a change in its orientation relative to a fixed point, as opposed to rotational motion, in which the object is turning about an axis.
With that in mind a leaf blowing across the field is not even spinning. a car in a parking lot with its engine running is still not spinning. a ballerina standing on one foot would be one if she was spinning, so the on answer is A. a coin spinning on a desk

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Motion along a straight line, such as an axis, In this case,its the general movement of any object without the rotational component. In inertial translational motion without rotation the object always keeps the same inertial attitude. Rotation and translation together provide 6 degrees of freedom and in the space business are often treated as a 6-vector. As an example NASA refers to translational and attitude control of a spacecraft. These are often monitored and controlled independently of each other because translation, and its associated measured quantities such as velocity change, primarily affect orbital dynamics and operations like rendezvous and docking, while rotation primarily affects operations such as sighting, aiming of translational thrusters, etc. I can't give you the EXACT answer cause that wouldn't be helpful. That would be cheating. I hope this helped!

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first of all oly 1 person answered directly second it's b

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It's A

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B. a leaf blowing across the field | Would be the correct answer. ^.^

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