Question

If an astronaut has a mass of 87 kg, what is their weight on the moon (a=1.62 m/s2)?

Answer 1

F = ma 
F = 87*1.62 = 140.94N = 141N

Answer 2

If the mass of a man on earth is 87 kg. then the mass of a man on the moon would be 14.38 kilograms.

   hope this helps