What is the weight in newtons of a 50-kg person on earth? what would this person's weight be on the moon?

"Newtons" are a unit of force, equal to mass multiplied by acceleration (or kg x m/s^2), as evidenced by the equation F=ma. In this case, F is the unknown, and M is given as 50 kg. On Earth, acceleration (due to gravity) is, at sea level, roughly 9.8 m/s^2. Now we have F = 50 x 9.8, which gives an answer of 490 Newtons. On the moon, acceleration due to gravity is much less; roughly 1.6 m/s^2. Mass is the same no matter where the object in question is located, so we still have 50 kg. F = 50 x 1.6, which gives us 80 Newtons.

on earth would be 50*9.8=490 newtons. 9.8 is the gravitional acceleration. moon has 1/6 the gravity of earth so it's 490/6=81.67 newtons. Hope this helps.

wieght in NEWTONS is Force=Mass*acceleration on earth, acceleration is 9.5 dont know about moon