an asteroid has a radius of 110000 m and a surface gravity of 0.0338 m/s^2. what is the mass of the asteroid?

Surface gravity =[G * M] / r^2 [Assuming a spherical Asteroid]. 0.0338 =[6.67428E-11 * M] / 110,000^2, solve for M M = 6,127,702,164,128,566,272 - Kg M =6.128 x 10^18 - kg - mass of the Asteroid.

Can you explain this better? Im not understanding it.

What is it you don't understand?