# Martian's Weight on Mars Calculated

• AmericanBoy
In summary, to find the weight of a Martian on Mars, you would use the formula W=mg, with the mass of the Martian (35.0kg) and the gravitational field strength of Mars (6.42x10^23) being plugged in. The radius of Mars (3.40x10^6) must also be squared and multiplied by the universal gravitational constant (6.67x10^-11 N·(m/kg)^2). This would result in a weight of 4.28x10^13N on Mars.
AmericanBoy

## Homework Statement

On Mars, a martian tells you he has 35.0kg of mass. What is his weight on mars?

Mars Info:
Mass= 6.42x10^23

FG=GM1M2/R^2

## The Attempt at a Solution

I tried using the equation above, but i got 4.28x10^13. I am pretty sure you have to find Gravity on Mars and multiply it with the martians mass because mass to weight on Earth is mass(kg) x 9.8 m/s^2 (Gravity on Earth)(Hopefully this is a better format than my last thread.

it sounds like you forgot to multiply by G.. please post all working.

That's the problem. How do you find G on Mars?

AmericanBoy said:
That's the problem. How do you find G on Mars?
G is a universal constant (not to be confused with g).

If you have a data sheet, the gravitational field strengths for various planets may be given. This would allow you to use W=mg.

CheesyPeeps said:
If you have a data sheet, the gravitational field strengths for various planets may be given. This would allow you to use W=mg.
I'm sure AmericanBoy is supposed to use the information about Mars provided.

CheesyPeeps
CheesyPeeps said:
If you have a data sheet, the gravitational field strengths for various planets may be given. This would allow you to use W=mg.
How would information like this help the OP who is trying to learn the fundamentals?

Chet

ulianjay
It looks like you have the correct formula, you just plug everything into get the final answer. (6.67 x 10^-11N·(m/kg)^2)(35kg)(6.42 x 10^23kg) / (3.4 x 10^6m)^2.

## 1. What is the average weight of a Martian on Mars?

The average weight of a Martian on Mars is approximately 38% of their weight on Earth. This is due to the lower gravitational pull on Mars compared to Earth.

## 2. How is the weight of a Martian on Mars calculated?

The weight of a Martian on Mars is calculated using the formula W = mg, where W is the weight, m is the mass, and g is the gravitational acceleration. The gravitational acceleration on Mars is approximately 3.7 m/s².

## 3. Does the weight of a Martian on Mars change based on their location on the planet?

Yes, the weight of a Martian on Mars can vary slightly depending on their location. This is because the gravitational pull is not uniform across the entire planet. Areas with higher elevation or denser materials beneath the surface may have a slightly stronger gravitational pull.

## 4. How does the weight of a Martian on Mars compare to the weight of an astronaut on the Moon?

The weight of a Martian on Mars is about 38% of their weight on Earth, while the weight of an astronaut on the Moon is about 16.6% of their weight on Earth. This means that a Martian would weigh more on Mars than an astronaut would on the Moon due to the Moon's even lower gravitational pull.

## 5. Can a Martian's weight on Mars be converted to other units of measurement?

Yes, a Martian's weight on Mars can be converted to other units of measurement such as pounds, kilograms, or newtons. This can be done by multiplying the weight in Martian gravity by the conversion factor for the desired unit. For example, to convert a Martian's weight on Mars to pounds, you would multiply their weight by 0.38 (since 1 Martian gravity is equal to 0.38 Earth gravities).

• Introductory Physics Homework Help
Replies
9
Views
2K
• Introductory Physics Homework Help
Replies
7
Views
2K
• Introductory Physics Homework Help
Replies
11
Views
2K
• Introductory Physics Homework Help
Replies
7
Views
3K
• Introductory Physics Homework Help
Replies
14
Views
1K
• Introductory Physics Homework Help
Replies
6
Views
15K
• Introductory Physics Homework Help
Replies
2
Views
1K
• Introductory Physics Homework Help
Replies
2
Views
784
• Introductory Physics Homework Help
Replies
2
Views
1K
• Introductory Physics Homework Help
Replies
1
Views
2K