The real evidence with hammer and vaccum, is when purported NASA moon-walker David Scott "drops" the feather too to demonstrate it. But by "proving" its a vaccum, this DISPROVES it occurred on Earth's Moon!!
But let's review basic HS physics!! (like NASA kiddie-math)
From the video, we already apparently see that the hammer + feather BOTH take no more than 1.1 seconds (27 frames to be generous) to "fall" from height to surface. But we KNOW that formula for distance is D = (1/2) * g * T^2
where g is gravity accelleration (supposedly Moon's) and T is Time. and D is distance
Let's plug-in the variables. Now T= 1.1 (s) at most, while from "basic moon facts" we know g is 1/6 that of Earth! Which is 9.8 m/s^2 in SI units. So on Earth's Moon, it is 1.63 m/s^2, in SI units.
Multiplying, this yields 1/2 * (1.63) * 1.1^2 = 0.986 meters.
BUT LOOK AT VIDEO (action occurs, just before 1:00 minute mark). Where is the starting point of hammer + feather: shoulder height!
This Dave Scott dude is at least about 6 ft tall (including moon boots). So how is his shoulder LESS than 1 meter above the "moon surface" as proven by HS physics math??
https://www.youtube.com/watch?v=-4_rceVPVSY