2 Answers

Bill Ortell · Answer 1 · 2021-01-16T16:13:29+0000

Answer:

$\huge \boxed{\mathrm{42 \ kg} }$

Step-by-step explanation:

$\sf Weight \ (N) = mass \ (kg) * acceleration \ of \ gravity \ (m/s^2)$

$\sf W=m * g$

We know that the acceleration of gravity on the Earth is approximately 10 m/s.

The weight of the body is given 420 N.

$\sf 420=m * 10$

Solve for the mass. Divide both sides by 10.

$\sf m = 42$

The mass of the body is 42 kg.

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