1. The problem statement, all variables and given/known data Hi guys so i have this problem that i have been trying to solve and i think i might have the right answer but i am a bit confused about something. An astronaut conducting experiments on the moon, drops an object from a height of 1.6m and notices that it takes the object 1.4 to reach the moons surface. If the mean radius of the moon is 1.74 * 106m , calculate the mass of the moon. 2. Relevant equations gx = GMx/Rx2 Mx = gx * R2 / G 3. The attempt at a solution Well this is where i get confused, I know that the gravity on the moon is 1/6th that of earth so its equal to 1.6m/s2. So this is what i did Mx = 1.6m/s2 * ( 1.74 * 106m )2 / 6.67 * 10-11 and i got the mass to be 7.26260869 * 1022 Is this the correct answer?