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### Student Question

The Perseverance robot weighs 1025 kg on Earth. What will be its weight on Mars? Can you help me?

Physics ## Explanations (1)

• Explanation from Alloprof  Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Hi Tomate Supra!

First, let's check what we know and what we can deduce from the statement:

• The Perseverance robot has a mass of 1025 kg. Its mass on Earth is the same as that on Mars.

Let's check what we are looking for:

• The weight of Perseverance on Mars

So, to find the answer to the question, we must use the weight formula:

$$P = m \cdot g$$

Legend:

• P: weight (N)

• m: mass ( kg)

• g: gravitational acceleration constant of the star ( $$m / s ^ 2$$)

We know the value of m. The value of g should probably be given in the question. In this case, the value of the gravitational acceleration constant on Mars is $$3.72 m / s^2$$.

Thus, we replace the known values ​​in the formula:

$$P = m \cdot g$$

$$P = 1025kg \cdot 3.72 m/s^2$$

$$P = 3813N$$

By doing this, we find the final answer.