Answer:
[tex]\huge \boxed{\mathrm{42 \ kg} }[/tex]
Explanation:
[tex]\sf Weight \ (N) = mass \ (kg) \times acceleration \ of \ gravity \ (m/s^2)[/tex]
[tex]\sf W=m \times g[/tex]
We know that the acceleration of gravity on the Earth is approximately 10 m/s.
The weight of the body is given 420 N.
[tex]\sf 420=m \times 10[/tex]
Solve for the mass. Divide both sides by 10.
[tex]\sf m = 42[/tex]
The mass of the body is 42 kg.
