Verified Answer :

Mass of an object/person remains constant everywhere,
We know, gravity = 9.8 m/s2 on earth
So, m = W/a
m = 490/9.8
m = 50 Kg

In short, His mass on the moon is 50 Kg

Hope this helps!

onyebuchinnaji

The mass of the man on the moon is 50 kg.

The given parameters;

  • weight of the man on earth, W = 490 N
  • weight of the man on the moon, = 81.7 N

The weight of the man may vary due to change in acceleration due to gravity but his mass will be constant in both earth and the moon.

mass of the man on earth = mass of the man on moon

W = mg

where;

  • g is the acceleration due to gravity on earth = 9.8 m/s²
  • W is the weight on earth
  • m is the mass of the man

\(m = \frac{W}{g} \\\\m = \frac{490}{9.8} \\\\m = 50 \ kg\)

Thus, the mass of the man on the moon is 50 kg.

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