If a person weighs 750 n on earth how much would be his weight on the moon given that moons mass is 1/ 81 of that of earth and its radius is 1/3.7 of that of earth explain me in detaile
Answers
Answer:
Looks like a homework problem to me. I’ll provide some help, but I won’t do it all for you. I recall that the moon’s gravity is about 1/6th the gravity on earth. That would put the answer at about 125 N.
Does you teacher want to to show your work? This problem seems to be designed to use Newton’s law of gravity:
For a problem like this you don’t have to look up any constants. You can start with:
F = 750 N
m1 = 1 man mass unit
m2 = 81 astronomical body mass units
r = 3.7 astronomical body length units
and solve for “G” in the arbitrary units adopted for this problem.
Now use Newton’s equation again to calculate F. On the moon:
m1 is still 1 man mass unit
m2 is now 1 astronomical body mass unit
r is now 1 astronomical body length unit
You answer should be close to (but not exactly) 125 N.