What is the acceleration due to gravity on this asteroid?

[azila]

Homework Statement

An astronaut's pack weighs 15.3 N when she is on Earth but only 3.05 N when she is at the surface of an asteroid.

a. What is the acceleration due to gravity on this asteroid?

B. what is the mass of the pack on the asteroid?

Homework Equations

ok, I know I have to you F=ma; but I am stuck after that. I know my mass which is 3.05 N but what is my force?

The Attempt at a Solution

I tried, but i have two unknowns, I do not what the force is or what the acceleration which is what I am trying to calculate. I know I am missing something or I am overlooking something. Please help if you can. Thanks

 

[neutrino]

I know my mass which is 3.05 N but what is my force?

You have it mixed up. Force is measured in Newtons, while mass is measured in Kilograms.

You are right in saying that you have to use F = ma. What is the value of 'a' on the surface of the (perfectly spherical) Earth?

 

[SnipedYou]

Well you could do it like this: $$\frac{15.3}{3.05} = \frac{9.8}{x}$$ I just rounded everything off and found that $$x = 1.95$$

 

[azila]

thank you so much. Yeah, I was mixed up about the mass and force units. So thanks.