Forgive my ignorance; what's a Newton? Can the tension in a string be satisfactorily expressed in Kilograms?

Answer 1

A newton is a measure of force (unit is kg.m/s^2)

Answer 2

Newton is a standard unit of measurement of a physical quantity called force named after the great scientist Isaac Newton.By tension in a string/spring we mean the force with which it pulls back its both ends. String can only be extended although it does not seem to be. But its molecules come apart a little and now want to go back when you pull at its both ends together. The force with which it does this act is called its tension. You can just try to extend/compress a spring and you would see how it gets extended and compressed and tries to come back to its original state.You can measure it in kilograms if you like but you must know what is its meaning. Its meaning would be the tension created in a string when one kg for example is attached to one of its end and the other fixed securely with the earth with help of a stand so that the string becomes taut in vertical position. You may say the tension in the spring is 9.8 N the force with which the earth attract the 1 kg mass and because you have not allowed the other end to move, the other end also pulls the string up creating tension in the string. If you want to call it 1 kg you should know in your mind that it is equal to the force with which earth pulls an object having mass 1 kg. That is why it is better to call it as 1kg wt. instead of 1 Kg because Kg is the unit reserved for measuring mass.

Answer 3

A Newton is a measure of force. Force (by Sr. I. Newton's second law) is mass × acceleration. One Newton (N) is equal to "One kilogram-meter per second squared" (kg*m/s²).

Something with a of 1 kg seems to have the of 1 kg multiplied by the Earth's gravitational acceleration, g = 9.8 m/s².

So, no, the tension cannot be satisfactorily expressed in kilograms, but in pounds, yes. The pound is not a unit of mass, but a unit of weight (force). The English unit for mass is a "slug" and a 1 lb is equal to a slug multiplied by g = 32 ft/s².

Answer 4

A Kilogram is a measure of mass. Tension is a measure of force. On the Earth when we lift an object that contains a Kilogram of mass it weighs 9.8 Newtons. The definition of a Newton is the force that it takes to accelerate one Kilogram one meter per second per second.
In the British system Pound is the measure of force and Slug is the measure of mass.

Answer 5

A newton (small N) is the SI unit of force. A 1kg mass weighs approx 10N (on earth). Strictly speaking you could not express tension in kgs but then again you should not really say "I weigh 70kgs" either (but who would know what the hell you were talking about if you said you weighed 700 newtons?)
In the lab/uni stick to N but at home use kgs to your heart's content..they can't touch you for it.

Answer 6

A Newton is a unit of force. It is defined as the force needed to accelerate 1 kg 1m per second squared

Answer 7

Usually you can buy newtons in packages weighing close to one pound. They have apple, fig and strawberry newtons. Since a kg is about 2.2 pounds I would say a package is about 1/2 kilogram.

http://www.answers.com/newton%20string%20tension
http://www.scienceforums.net/forum/showthread.php?t=23763
String Tension and Newton's Law.?

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Problem : Two blocks of masses 10 kg and 20 kg are connected by a string that passes over a pulley as shown in the figure. Neglecting friction between surfaces, find acceleration of the blocks and tension in the string (consider g=10m/s2 ).

Solution : The blocks are connected by a taut string. Hence, their accelerations are same. Let us assume directions of accelerations as shown in the figure. Also, let the magnitude of accelerations be “a”.
According to Newton's Law.F=ma
∑Fy=T−10g=10ay
The problem is that.
in above equation why we took T as positive and mg as negative?
On the other hand in ∑Fy=20g−T=20ay i.e for "20Kg" we took T negative and mg positive.


http://www.answers.com/topic/thrust

What is a Newton? [Web Answer]
A newton is defined as 1 kilogram mass times an acceleration of 1 meter per second squared. One newton equals approximately 0.2248 lbf.

http://www.answers.com/topic/thrust

Thrust
The force that propels an aerospace vehicle or marine craft. Thrust is a vector quantity. Its magnitude is usually given in newtons (N) in International System (SI) units or pounds-force (lbf) in U.S. Customary Units. A newton is defined as 1 kilogram mass times an acceleration of 1 meter per second squared. One newton equals approximately 0.2248 lbf. See also Force; Units of measurement.

A newton is basically a unit of measurement a form of expressing a unit of measurement which can be expressed in kilograms or pounds


http://www.kingschester.co.uk/Departments/Physics/revision%20notes/5th%20form%20revision%20notes.pdf

Force = mass × acceleration (newton, N) (kilogram, kg) (metre/second squared, m/s ... around on a piece of string, the force comes from the ...

Answer 8

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Answer 9

no. the tension in the string is factored from gravitic attraction, which is mass x pull of the gravity field.

Answer 10

Do you want to understand one of the factors typical Law of attractionproduct does not work for numerous individuals?Think about it like a diet. If you wish to reduce weight and you work hard to lose it