Asked by Amber

If a rock weighs 783 N on earth, what is its mass?
A. 87.0

B. 79.9

C. 78.6

D.77.5

Is it B?

Answers

Answered by Damon
m g = 783 N
so
m = 783/g
g is about 9.8 m/s^2
so
m = 783/9.8 = 79.9
so yes, right
Answered by Damon
You better get this weight = force = mass * acceleration of gravity thing
Answered by Amber
Thank you!
Answered by Damon
You are welcome.
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