Un objeto tiene un peso en Marte de 80,000N cual es el peso de dicho objeto en la tierra

In Earth the weigth is  211,891.9 N

Explanation:

I will answer this in English.

This says:

If an object has a weight of 80,000 N on Mars, how much it weighs in the Earth?

The weight can be written as

W = m*g

Where W is weight, m is mass, and g is the gravitational acceleration.

The gravitational acceleration in mars is g= 3.7 m/s^2

then we have:

80,000 N = m*3.7m/s^2

(80,000/3.7) kg = m

21,621.6 kg= m

Now, in the Earth the gravitational acceleration is g = 9.8m/s^2

then the weight in the Earth is:

W = 21,621.6kg*9.8m/s^2 = 211,891.9 N