What Are the Correct Units for Weight?

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SUMMARY

The correct units for weight are both Newtons (N) and kg(m/s²), as they represent the same physical quantity. Newton is defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared. Therefore, the answer to the question posed in the forum is option (d), which states that both b and c are correct. This conclusion is based on the fundamental relationship between mass, acceleration, and force in physics.

PREREQUISITES
  • Understanding of SI units, specifically kilograms (kg) and Newtons (N)
  • Basic knowledge of Newton's second law of motion
  • Familiarity with the concept of force as mass times acceleration
  • Ability to interpret mathematical notation in physics
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  • Study Newton's second law of motion in detail
  • Learn about the relationship between mass, weight, and gravitational acceleration
  • Explore dimensional analysis in physics
  • Review the concept of force and its units in different measurement systems
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This discussion is beneficial for physics students, educators, and anyone seeking to understand the fundamental concepts of weight and force in classical mechanics.

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Homework Statement


The units for weight are
A)kg
B) Newtons
c) kg(m/s^2), the 2 means squared
d) both b and c


Homework Equations





The Attempt at a Solution



i believe the the answer is d am i right?
 
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pyroknife said:

Homework Statement


The units for weight are
A)kg
B) Newtons
c) kg(m/s^2), the 2 means squared
d) both b and c


Homework Equations





The Attempt at a Solution



i believe the the answer is d am i right?
You are correct.

Newton (N) is a measure of force.

Also force F is the product of mass (m) and acceleration (a). Unit of mass in SI/mks is kg, and unit of acceleration is m/s2 or units of force are kg-m/s2.

The definition of 1 N is 1 kg-m/s2.
 
you are correct
 
pyroknife said:

Homework Statement


The units for weight are
A)kg
B) Newtons
c) kg(m/s^2), the 2 means squared
d) both b and c

In fact, choice (c) gives the fundamental units for Newtons, so choice (b) is really the same. So (d) would be correct.
 
Astronuc said:
You are correct.

Newton (N) is a measure of force.

Also force F is the product of mass (m) and acceleration (a). Unit of mass in SI/mks is kg, and unit of acceleration is m/s2 or units of force are kg-m/s2.

The definition of 1 N is 1 kg-m/s2.

when you typed "kg-m/s^s" does this "-" mean minus or multiplying?
 
pyroknife said:
when you typed "kg-m/s^2" does this "-" mean minus or multiplying?

When applied to units, that is a commonly used notation to indicate multiplication.
 

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