Val C.

asked • 12/17/15

A person weighs 600 N on Earth. What is the person's mass?

A person weighs 600 N on Earth. What is the person's mass? I dont understand what im supposed to do here. Someone help please!!!!

1 Expert Answer

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Steve G. answered • 12/17/15

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N(ewtons) is a term in physics that represents weight =mass*gravity.
 
On earth, gravity is approximately 9.8 Newtons.
Mass is usually expressed in kg (kilograms)
 
So, you would set it up as:
600N = m*9.8N
m=600/9.8
m=61.22kg
 
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Michael J.

The unit for acceleration due to gravity is m/s2. The unit for force (in this case, weight) is N.  You want to be careful with the units for each physical quantity you use.
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12/19/15

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